I think you're understanding the situation wrong! It looks more like the uke has Stockholm syndrome, meaning he developed a bond in response to the trauma of being abused and now he thinks he can't live without the seme anymore.
No! Actually the Stockholm syndrome part was kinda obvious to me, I just forgot to mention it. I just didn't know how to explain it but it's like all the trauma and stuff made him into someone who actually craves the seme's violent affection (that's why he forced seme to to not abandon him) iykwim
But that's not something good and that's not something ppl should like? Stockholm syndrome is not something good. He's not a masochist, even if it seems like that
They both are such twisted people and they match each other so much. The seme is a cruel mf for whom cherishing someone means violently domesticating then as his 'dog' (the way he does to the uke) and uke is like a masochist who craves that kind of violent affection from him. In the end, the uke manages to 'domesticate' the seme too by forcing him to stay together with him (๑•ㅂ•)و✧