I really don't get it. Why does he want revenge against seme, i'd want revenge for that mf son and those old people.
What i undestand is that uke was expecting something more from seme.
Uke was worked as a whore not way out, to proud to ask seme for help but was expecting him to help him, so as seme was the only one that was kind and saw him as human, he give him hope things will get better and uke fell in love with him.
Seme showed him kindness and compasion, helped him but not enough to get him out of there.
Is it right?