Before you recruit him he seems like a nice guy who turns down sex because 'I don't want to relapse into cultist behavior'. I was under the impression until like yesterday he was a bland nice guy because I ignored him for being a bland ugly nice guy.Imagine not telling Quinn to fuck off and die. And then bitching how shitty he is, lmao.
The very instant you recruit him he's using dark magic on one of his own allies.
Its also really stupid you have Arugia, specifically the character he does this to, to train him, rather than, say, Brint/enne who's either not Quint's type or pathologically loyal. Its a scenario that feels like the mc being an idiot purely to push Quinn's agenda. She's noted to be resistant to it so I guess that checks out but otherwise its really stupid.
Kind of like how in the midget Manticore quest you turn into a stuttering moron and start hearing your inner thoughts out of nowhere despite not acting like that in any other scene in the game (including other ones written by the same author).