Thoughts?

A couple have been married for 20 years, the wife's son has used and abused everyone in the family, even stabbed her husband. She always helps the son and lies about it. This time the husband says he wants a divorce, he says he would love to work things out but is hurt that after all those years she wouldn't take his feelings into consideration. I understand wanting to help your kid, but I imagine it must be hard on the husband also, to be expected to welcome him into their home and give him money they don't necessarily have. I'm just interested in whose side you would be on and why. Thanks for your time.