
Hii I completely agree with what you say bc I am all for healthy relationships too!
but for those people it’s usually because deep down they are long wired to believe that they don’t deserve better, and they don’t even believe there is something better just for them. When you have been in an abusive space for a long time, you don’t know how to be mentally healthy yourself too. When you have been with an abusive partner for a long time, or an abusive parent- you tend to link abuse as love. So unless they rewire their brain- eg. Therapy, their brain will feel uncomfortable and unsafe in a healthy relationship until they seek out the same pattern again ┗( T﹏T )┛

I would like to point out isolation goes hand in hand with abuse. Also the fact of talking with another person about something like that is really hard. If we follow the MC as an example, we can see he is putting up a front for others as to either not trouble them or break the illusion of his "character". The fact that he does not have friends followed up by lacking family or any kind of support system festers this kind of relationship.
Additionally in the queer community it is much easier to enter into abusive relationships because of how hard it is to find another person just like you in real life when you Also have to keep who you are as a secret to protect yourself. This can lead you to not being able to be open about an abuse or talk about it to see if it is normal considering the nature of the relationship. It's hard for heterosexual couples to break apart or talk about abuse. It's sometimes even harder for queer folk to do the same.
Personally, I dont get why some people choose to stay in a relationship that only cause them harm if they have every means to get out. Then there're who defend their abuser and say things like "he's actually a good person deep inside" like??huh?? Anybody care to enlighten me? Explain it to me like Im five