My mom is free, but I don’t know how to help.

My mom just kicked out her boyfriend of almost 2 years yesterday. He was nice at first, but he began to drink and verbally and mentally abused my mother. She kicked him out several times, but always let him come back. She finally had enough, but he has left her in thousands of dollars in debt. She won’t let me help. I’m only in my first year of college and I just started my new job. I don’t know what to do.