My husband and I've been married for 6 years, at least five of those have been almost no contact ...

My husband and I've been married for 6 years, at least five of those have been almost no contact with his mother. I don't know the whole story, but his dad passed away when he was young, and his mom remarried a man who was horribly abusive to him up until he moved out. He tried to tell his mother for years, but she just wouldn't believe it. It got to the point that for his own wellbeing he just couldn't be around her anymore. This week, after years of silence, she shows up at our doorstep. She