I removed the hissing and also the undead aura from his weaknesses so I know those aren't the issue. As @Nindigo said it's as if he's retained behavior of a trait even though it's been changed. I might as well change his trait back and just see how it goes. It's not like I'm expecting him to be friends with everybody. I just want him to maintain a good relationship with his wife. I put a lot of effort into building their relationship to full of both bars before allowing them to be married and now Vlad is ruining it all.