Below, the characteristics of a one-sided relationship, the common signs you may be in one, what causes them, and more.

It becomes overwhelming and tiring for the self-sacrificing partner to manage the relationship on their own when it should be a responsibility shared by both parties to nurture and move the relationship along. 

You notice that you do things for them, but you can't say they always do the same thing for you. Williams says that if you find yourself having to accommodate all of their needs instead of experiencing a flow of compromise, it's a red flag sign of a one-sided relationship. Take note if they're only in contact when they want something, but they aren't accessible to you in times of similar need.

"Establishing closeness or connection feels exclusively like your responsibility instead of a shared one," says Williams. "If you do try to bring up the disproportionate effort contributed to the relationship, they may minimize or downplay it as if your experience is exaggerated or false."

You keep trying your hardest, but it doesn't go anywhere. Over time, you begin to question your worth and believe that your needs aren't important enough to bring up. After all, if you were good enough, wouldn't they want to make you happy? Your mind can spin in circles wondering why they aren't putting in the same amount of effort.

They're always having a bad day or going through a rough patch. It seems like an act of benevolence and love to continually justify your significant other's actions, but it could also mean that you're avoiding the truth and enabling them. You're seeing your partner for their "potential" rather than seeing them as they are.

"The relationship is plagued with the presence of blame and self-blame rather than healthy anger and guilt—which is meant to hold the appropriate parties accountable," Joanne B. Kim, LMFT, tells mbg. "There's a heightened, ongoing experience of anxiety, guilt, shame, and resentment."

"One person is overly empathetic in considering their emotions and needs whereas the other person is overly apathetic and indifferent to others' experiences," Kim says. To reduce stress in the relationship, you may find yourself apologizing more just to end the arguments—even if you did nothing wrong. Over time, you can tell there's a clear power inequity with how you hold space for each other. 

Communications around certain topics are tiptoed around because you don't want to upset them. If it is spoken about, it's not received with mutual reciprocation. So instead, you repeat interactions where you feel love from them, even if it's at the risk of you not feeling known. Anything that might trigger conflict is swept under the rug. You don't have opinions that may trigger them. On the surface level, conversations are pleasant and benign. 

Because communications aren't transparent, you may find yourself overthinking their behaviors toward you and how they're truly feeling. Because you're unsure, you might dismiss your own feelings in favor of thinking about what they're feeling. The connection may be filled with more guessing and speculation rather than facts grounded in reality and knowing where they genuinely stand. 

"One person in the relationship (called the pursuer) is the one bringing up topics or issues, and the other party (called the withdrawer) is the one avoiding issues, passively waiting for the pursuer to fix the problems and becoming defensive once the pursuer confronts them," Kim says. 

While it can be beneficial to get a second opinion, it's not a good sign if you're always running to your friends about your relationship issues. It's better to bring it up to the person that can actually solve it and give you the validation you are desperately seeking: your partner. 

Boundaries are necessary and extremely healthy for a relationship because it helps reduce conflict, anxiety, and misunderstandings. "If you are in this situation as the burned-out party, and when you set boundaries, your partner, friend, or family member gets angry, that is NOT a sign that you did anything bad but rather a confirmation that boundaries are necessary," Kim confirms. 

Priorities about the relationship primarily differ. Perhaps you want to take the relationship to the next stage, but they're more interested in going out. They're not excited or as receptive to hearing about the things that matter to you. You're in the same relationship, but it's as if you're both doing things your own way without much overlap. There's no reconciliation between both perspectives, and the well-being of the relationship isn't prioritized as much as individual needs.

You often hint or give out clues because you want to change the way that they interact with you. But at the end of the day, it's not up to you; it's up to them. People don't change unless they want it for themselves, and they have to be an active participant in the growth. Forcing someone to alter who they are, even if you think it's best for them, requires manipulation—and it'll do more harm than good. 

You don't feel comfortable sharing certain aspects of what's going on with your friends and family. They may raise questions about your partner and how they treat you that you don't want to hear. 

RELATED: The 5 Stages Of A Relationship Every Couple Goes Through

Here are some signs that you're the one allowing all the work to fall on your partner's shoulders rather than mutually participating in the relationship and carrying the load with them.

When times get tough, it's easier to leave than stick around. There's fear around confrontation and intimacy. You don't want to rock the boat, so you would rather focus on the fun and enjoyable aspects of the relationship and keep communications lighthearted and easy. 

You feel comfortable thinking about how you're feeling and what you're OK with giving, regardless of what your partner may be asking of you. Your emotions and your preferences take center stage, and the relationship, and your partner, comes second. 

Maybe they want to have a career-change or travel to an exotic location on their bucket list. You may encourage and ask them about their interests, but it's mainly up for them to figure out on their own. 

They're dealing with a stressful situation at work that's taking up all of their time, or they're going through a rough patch with their family. Rather than checking in with them about it, you would prefer to have them bring it up if it matters to them. 

You might feel weary about sharing your innermost thoughts because it makes you feel weak or unworthy. You don't open up about the good and the bad all the time, preferring to keep it to yourself. 

"Unless they learn otherwise, through therapy or other forms of self-development, these exhausted individuals will likely replicate what kinds of relationship dynamics they were used to because, frankly, that's what their bodies know," she explains. "Familiar chaos can feel less scary than unfamiliar peace and harmony."

Here are tips from Williams on how to move the relationship to a healthier place and transform the dynamic into one where both parties feel mutually heard and understood:

"Be honest about the person that you are in a relationship with. What behaviors appear to be consistent across their relationships? Are they unique to your relationship? Is this person safe to talk to? Do they listen? Do they accept feedback well?" 

"Take an assessment of what you are contributing to the relationship to see what you can realistically maintain in a manner that honors you, your time, and your resources—emotions count as resources too. With this, explore your boundaries. Having boundaries looks like being clear about what you absolutely can and cannot tolerate and honoring that. You don't have to have any ultimatums because people don't respond well to them, but you can emphasize what's important to you." 

"Set aside some time to speak about your new boundaries and how you have been feeling in the relationship. It is important that you practice being intentional with what you are doing and why you are doing it to make sure that they ultimately honor your boundaries."

"These conversations will be ongoing, and they will only work by [you] being radically honest about what you need, who the person is, what they have agreed to, and what they are showing you. The only way to find balance is to discuss and collaborate on what can realistically happen. Explore any barriers that may be present, and then you can decide how long, if at all, you are willing to stay in that capacity without experiencing what you need." 

"If the partner responds with defensiveness, blame, or gaslighting, then it's not likely that much will change in the relationship anytime soon," Kim says. "Unless the partner voluntarily chooses to own their own choices and responsibilities, the relationship is set up to stay one-sided. The irresponsible party has a vested interest in keeping the one-sidedness going and maintaining the status quo because they could afford to not do anything further." 

If these signs are clicking for you, know that this isn't on you. It takes two people to effect structural change in the dynamic, not just one person, no matter how much work you put into it.