This two back-to-back complement very well because they explain who peethan is. 1. He is a lot more malleable than he thinks he is yet 2. Is so convinced he is right all the time and has to prove it.
So you've Ethan being a fan of Super Mega (because if he wasn't soy he wouldn't be a SM fan and if he wasn't soy he wouldn't be Ethan) who meets this chick that confides in him some pretty dark stuff and falls head over heels for her that happens to be related to SM. It was personal for Ethan, not enough to be directly involved in the front, but personal nonetheless. This is his GF and for the looks of it ride or die. Of course he was going to make it personal. But he probably would've walked from it all to lick his wounds if Lex didn't happen to be his GF, like how Morgpie deserted them or how all of them deserted Leighton, who all excused for having BPD before dropping him. That doesn't speak conviction, that speaks convenience and foolishness when talking about a sloppy blowjob.
Ethan is an unbearable cowardish cunt and he would still be one had Lex actually being sexually assaulted. They make each other worse and I wouldn't be surprised if they don't separate once their personalities have communed enough they are effectively the same person.