Anna is not easily satisfied. She has a strange sexual appetite for sure. I think it's very hard for her to reach a climax. Most of the time she just enjoys moderate satisfaction. Rarely have I seen her lose her mind. I don't think a caring intimate kind of guy would do any good to be honest. She needs the threat of danger to get there.
Yes, it's a positive and welcome change in his behavior. When he first stepped into Voro on VV, he was a happy go lucky hipster fun guy. The alcohol damages him and so do his enjoyment of rough sex porn. When he's not doing those things, he can shine.
The last talk VH had with Alex really shook him up, I think. Haven't seen him be a prick lately. Options are slim for them and I think he took it to heart this time. Well, at least until demon alcohol fills his soul again. We'll see.