What did you like about him? How did he make you feel safe and secure?

I don't pose the question for you to answer to me necessarily. It's for you to reflect on. Maybe you've been giving him too much credit for being a better person than what he is. He sounds pretty crummy to me.

It is amazing what women can tolerate from men. I've been there. I think we buy into the concept of "You get what you give." We give a lot, thinking that a man will want to reciprocate. Some are just takers and will never give back anyways near to what they get. (Same could be said for some women.)

You've been more invested in this relationship than he has been. I'm sorry it didn't work out. You probably had some high hopes. But there is no sense being with a man who seems to feel he is doing you a favor by being with you. And he won't change.

You have to go through the pain of the loss, but it's not a pain that will last forever. Eventually, you'll thank yourself. Meanwhile, he will try to contact you and get you back. A person like you is hard for a guy like that to replace. But don't bother with the "Okay, one more chance." He's shown you who he is. At the very least, do not continue practically living with him. It sounds like you made it easy for him to take you for granted.

If you give yourself time to get over the hurt, you might be surprised to find that you will be happier away from him. Being alone is not the worst thing there is. Right now, though, it will kind of be like withdrawal because you got used to coming home to him. Try staying away from him for 2 months, and then see how you feel.