Hi Okie, I'm sorry for the painful situation you find yourself in. I have a view on it which, while divergent perhaps, I assure you is not flippant.

As flippant as I might get about it would be to compare your husband's behavior to that of the farm dog who takes to killing chickens; once begun, neither can stop. The farm dog is customarily shot. I don't recommend this for your husband however. My view is not quite that divergent. lol.

But by all means leave him. You don't have to demonize him particularly to do this, although he sounds rather unsavory to say the least. The differences you share about sexual fidelity are the very definition of "irreconcilable differences." Take a pragmatic approach to this and give the "marriage" no more consideration.

Life is short, as they say, but it's long too, and it matters that you never surrender your pursuit of happiness. Go girl. Plan carefully, and be safe. But, go.