I don't recommend that you do anything to jeopardize your marriage. However, don't underestimate the force that you can have within the marriage to reshape things so that you will be happier. If you are bound together in marriage, you can either allow isolation to grow between you, or you can actively promote intimacy. I vote for promoting intimacy and that will require open honest communication. He may not come around at first, but given time, there is a good chance he will move.
Water carves deep grooves in rock over time even though water seems an unlikely cutting force.
Talk with him and lay it all out. Tell him you want to be more fulfilled, and what will need to change for this to happen. If you treat yourself like an equal partner, he will be hard pressed to not accept you as one. Courage, and good luck to you. My husband is a recovering addict of 3 years.