I think it's an interesting angle which seems to be plausible only because it's in this show. I agree that Maya has changed to more of her former bubbly self, but I think you'd also have to agree that she harboured this crazy anger inside of her for 8 long years...her feelings regarding MJ have always been intense since the start, be it love, fear or hate.
MJ is such a destructive and twisted man who manipulates and has destroyed the lives of every single person around him, and yet he continues being the haraamkhor that he is. The only way for Maya to get rid of him is to literally get rid of him, so you'd probably have to endure it till it gets somewhere