I did like Anna Maria, but after the Superior Spider-Man run ended, she hasn't been used as well, and Slott never really did follow-up on any interesting introspective with her dealing with the fact that the man she loved was really a now dead supervillain high-jacking someone else's body.
She just baked cookies that one time and 'POOF' all better! Never need to really deal with any of that again.
Now (or at least before Secret Wars) she just rides on Peter's back about everything, nagging him. I mean, why not just stop being involved with this guy if he's so much trouble? Don't have her stick around to be a b*&^$. She went from being one of a small number of very rare good things that Slott added to his run on the series to, like Slott long ago, having worn out her welcome.