Sorry for your troubles but I think you are better off without this man! He's controlling, not working, owes child support?? Sure you're better out of the situation. You won't win this one anyway, Polish women are very tenacious when it comes to getting their 'man' she'll make sure you are put in a
position where you will have to leave him, know that as surely as you know you'll die one day.
Sure you are going to feel like sh-t for a while but it will get better soon, you'll feel liberated!!
Just remember for the future that there are reasons for messy divorces and a man who does not support his child is surely not a man. There is always some kind of work where he could send at least some money for his kid.
As for Monika well she's obviously not too clever because if he can cheat on you he can cheat on her too!!!
You could write back in Polish on FB about what a desperate cow she is and how she's welcome to your cast offs, bit immature but good for the soul!!
I don't think you're mature enough to be in a serious relationship.
Bit harsh, everyone can be foolish in love, happens all the time even to the best people.
Men can be equally taken in by women, sometimes by Polish or other European women, just hope it never happens to you.
Best of luck Kareof things will get better.