Of course Tony could tell Maria about Carla's return and her insane rantings about his involvement in Liam's murder, turning the tables on Carla, insisting that she is out of her mind with jealousy, and judging by Carla's previous attitude towards Maria this would not be too hard to swallow.
But of course he won't because there would be no storyline in it, instead he will do everything to silence Carla, including hiring Jimmy to murder her as well.
Looks like Maria is set to rival Gail when it comes to an unbelievably unlucky lovelife.