There has to be a lot more that we haven't seen, because nothing I've read is anything other than iskall being a creepy cheating partner.  The problem publicly, is that you've made accusations that Iskall is "abusive", "manipulative" and a predator, but you've given the public nothing to back that up with.

Iskall definitely seems like the person that would be like this, and especially the last year or two, he's changed into kind of a monster, even in his videos, but you really need to be careful with sharing stuff publicly, without giving proof publicly.  I want to reiterate:  I believe you, at least I believe you feel the way you feel with legitimate cause, but it's hard to confirm he's a sexual predator, without public facing proof.  If you're going to accuse someone publicly, you need to provide the proof, as uncomfortable as that is.