Serious question: what's the thought process behind having sex at that moment?

Generic moment that happens in all BLs with a shitty ML and an author who loves writing smut without caring about the story.

Uke gets in trouble or gets assaulted. Then the ML sees this as an opportunity to rape MC as ''revenge''

At the end he pushes the blame off to uke, saying he drove ML crazy and it's his fault that ML lost control.

Uke apologizes for getting raped, ML acts like an angsty tragic lead who made a silly mistake.

I didn't expect such a shitty clishe to appear here.