For some people who have grown up around this kind of behavior it can almost seem normal or OK. Many of us learn from watching and imitating the people close to us.
So someone who has lived around violent or disrespectful behavior may not have learned how to treat others with kindness and respect or how to expect the same treatment.
As for practical advice, if you think your balance in a relationship could be improved, what item(s) from the above list most resonate with you?
Consider how you could bring that particular dimension of balance into your relationship(s) more. Think of something actionable, that you can do today.
(On the other hand, if you've already been neglecting your needs, then continuing to bend over backwards is unlikely to help.) Of course a balance of give and take does not mean keeping a of who's turn it is to do what.
It's hard for trust and warmth to develop, when the process of being flexible, helping out, or compromising becomes like book-keeping.
But if that trust and warmth is really nurtured from both sides an overall balance is naturally maintained.
So, to recap, the qualities of balance and how to build it identified here are: relationships are.
Within the context of a balanced relationship, being willing to compromise sometimes is part of what strengthens bonds between people.
The idea is that two different things can go well together when combined in certain ways that account for those differences - and any similarities.
What this means is that very different characters, interests, or skill sets can sometimes fit well together, even though it might appear that there is a lack of balance, in terms of who is doing or saying what in a relationship.
If your own balance is strong, maybe you can make the dance work, but it soon gets tiring.
If both you and your partner have poor balance then it happen that you manage to balance each other, but it's a very lucky event (until you've both had more learning experience).