I don't know why you guys were expecting him to take the opportunity when the dude already told us his circumstances, he got avoided by (almost) every type of women just from his "sex drive aura" alone and you were expecting him to use 'em on the only one who isn't avoiding him like a damn criminal?
That's gotta be some heavy trauma shit, unless she actually say she want and okay with "it" I'm sure as hell ain't gonna take it if I were in his shoes