Wait. So, he decided to work while you stayed home with children, yet he couldn't provide much of a financial support for the family... He failed at his job and career, yet he expected you to endure all the financial, emotional and verbal abuse... He failed as a father. as a husband, as a provider, and even as a basic human being; HOWEVER, he thought he OWNER you?

Giiiiirl, run away. I hope you'll be able to get out of this situation soon, raise your babies in a loving and stable home, use your education to earn a living, and overall become happy. You deserve it. Your kids deserve it. You might need help in the beginning, but you don't need a partner for all this. I wish you the very best.