Greensleeves
Whatever the disgusting comment was, I'm more concerned that he seems to be conditioning you to accept abuse, gaslighting you constantly, undermining your sense of self as a mum and as a person - and he's good at it. He's got experience.
This isn't a good man. I'm sure you're aware that past abuse and PTSD can make you more susceptible to abusive controlling bastards; I think that is what has happened here. Do you have any support in RL, away from him? I think you need to start planning your escape
Exactly this! I stayed in an abusive relationship for over a decade, also because I was scared of being a single mum. Do you know what I learned AFTER I finally couldn't take it anymore and got rid of him? There was no fear. I felt amazing. Suddenly the knot in my stomach was gone. I felt free. I'd been paying for most things myself and doing almost all the house and child work so realistically nothing changed except I no longer had to wake up knowing I would spend my day walking on eggshells.
Family, out of nowhere turned up to support me where before they kept their distance because of him. I was able to rebuild relationships with friends and family and developed this new sense of confidence and self worth. I signed up to and completed my degree in education and my old life, the one where I dreaded waking up to, feels a million miles away.
I look back with great regret that I let 'fear of being a single mum' keep me imprisoned in a cycle of abuse, gaslighting, walking on eggshells, barely existing.
I tried so many times to take that first step to getting out and that stupid fear (which was all in my head) kept pulling me back, taking him back, apologising to keep the peace. Then one day I took it, then I took the next step, then the next...
So really think hard before you take him back. Are you already doing the lions share of everything? Do you have friends or family you can confide in?