I had a classmate with a similar story many years ago, she'd call, cry, ask for help, but whenever I told her to call the police or simply leave she'd say something like, "...but I love him." Once that is said, you cannot help somebody who doesn't want to help themselves.

My classmate's situation never did get better, and she never did leave him. They are still married some 20+ years later, they have two kids together...both boys, both dropouts, one addict, one gone to who knows where doing who knows what.

This is a 100% broken household and the are only worse things to come in the future if she doesn't cut and run right now. Believe me, I've seen it with my own eyes.