If the flat was bought on joint names, you have 50% share in it which cannot be denied by him. Even otherwise, you can claim residential rights under DV act.
You have not stated whether you converted into Muslim or still remain a Hindu. Whatever it may be, the problem with inter religion marriages will crop up one or the other day if there arises lack of understanding and suspicion in either of the spouses.
Since you both are into the legal profession, should not hurry for legal solutions to the problems which can be solved amicably by reconciliations. Remain calm and allow time to pass which will have an answer at at later stage sooner.