Maryzora is my favourite word of the day. But, while I never tried it myself, I think Gale, Karlach, Lae'zel and Wyll do break up with you if you cheat on them with Mizora and I think Mizora's whole deal in trying to seduce the PC is that she wants to sow unrest in the camp and ruin relationships. It's less that you must find her desirable, it's more a bait she throws out to see if you bite and are stupid enough not to think about the possible consequences.
