If you repented and married, then your marriage is valid.

 

If your husband is neglectful of his duties, you are allowed to seek a divorce from him. If he refuses to grant you a divorce, you are allowed to go to the court to get a legal divorce.

 

Allah prohibits husbands from keeping their wives as if they were prisoners: neither treating them in a dignified manner as spouses nor releasing them honorably from marriage bond.

 

As I can figure out from your question, your husband is keeping you as a prisoner. Therefore, you are justified in divorcing him.

 

Almighty Allah knows best.