Take it easy, In fact, u have two options:
1. Keep the marriage.
2. divorce.
So u have to make up the mind what u want to do, and it also depends whether u have children or not.
If u have children, u should consider what is the best way to bring up your child. Actually, it may even worst for a child if they can tell their parents not getting along.
Actually, it is a very decision, but u may be over-reactive, and may talk to hime whta u really feel, then uca n make a decision later.