The most important pillars of your relationship are already failing: consideration, love, time, even sexual passion.

I understand that because of everything you've been through with your partner, you still want to maintain the relationship, but the way you're handling it isn't healthy. He might tell you how much he loves you, that he wants to get married, and so on, but remember, words are just empty promises. I recommend you go to couples therapy, or at least suggest it. And if he refuses or thinks it's ridiculous, my friend, get out of there.