I feel like ppl are a bit too much on the nose of banning any form of romance from magics. I think some CA's are more conceptually appropriate for these - while some should have entirely distinct forms of relationship that fit both culture and nature. I don't see it necessary to bar it from naztherak. However some of the statements expressed here are alarming to me.
What I find laudable are the people that would prefer to be disconnected from a magic than lose their ability to romance/ftb. Taking on something like necromancy or naztherak should be a heavy decision, integral to your character because it alters mind, body, and ultimately - the very soul itself. If you consider that the ability for your character to find a partner is more important than the soul-altering, demonic magic they took on, then you may wish to revise your outlook on roleplay. I know for a fact that when FTB'ing was banned on necromancy quite a few people sought out disconnection. Fine, but why is that your true priority when faced with that decision?
What I mean is that magic (especially something like Naz) shouldn't be something to be easily taken and cast away, but a serious decision with very real emotional, psychological, physical - and spiritual consequences, and I'm afraid that some people might take it a bit too lightly in retrospect.