What Spooktacular said with bells on.
I was engaged to my ex. We had a mortgage (no kids though). Anyway, he was a twat, an absolute manchild who had no sense of responsibility, drank too much and was verbally abusive whenever he did, pissed money up the wall. I felt like his mother, and he would say all I ever did was "nag". Awful fucking word.
Anyway, even in spite of all that it was hard to leave. The unknown is scary. I had the feeling that I'd made my bed and should lie in it. But I dumped his ass, finally.
The house was left in negative equity, I tried to rent it out and we'd equally chip in for the shortfall except he never did and it ended in voluntary reposession. I had to move back to my hometown and live with my mother, get a new job.
I met DH at that job, married at 34 and had DD when I was 38. He is an amazing man, puts DD and me first, does his share of work, I couldn't ask for more.
I left this twat, went back on a engagement, left a house behind, left my job, after 4 years invested with him. You can leave OP, 19 months is no time at all. You could text him today if you wished, 'You're dumped, arsehole', and that would be that.
There is time for a future with a decent man. You are worth so much more than what this knobhead is offering. He isn't kind, if he was a twat all the time you'd have left already.