Seriously end the relationship. Moving in together before marriage talks is already a terrible idea. It's like let me rent this car first to see if I want to buy it. But then he continues to rent it because he's not sold but it gets him from point a to point b it's reliable and it's convenient. Will he buy the car probably not. He hasn't had to work for it paying it off and loans all that, he doesn't appreciate it. You can tell when you're not a priority and not ever going to be one. Move on, get away while you still can. You will never be a priority. All men are interested in sex. I'd be concerned if he's not looking for it with you that he's looking elsewhere or possibly already getting it.