I don't have time for some who doesn't have time for me

He's the biggest jerk, he left when I was pregnant.
Came back when I lost it.
Titles like mr. and mrs. don't mean anything to some.
He thinks I'm pregnant again, I don't know if I am yet, I've been to dizzy to go out the last few days to get a test, and he's being an asshole again. 
I need to stay strong. Any tips? 
I don't want to be treated badly anymore. 
Please don't mention divorce, I'm not at that stage yet.