May I be a little rude. Are you 100% sure that this is the case? Different parties both male and female can play as if they are the poor innocent victim.
Question 2: Is abusive physical, mental, emotional, something else.
If there is physical abuse, then he should definitely be warned and stands to suffer severe potential damage.
If the others are the case, are there any potential possibilities of help, like therapy.
Beis Din nad/or a local rav may and should be able to help as well.
I do have a bit of experience in the field, so please don’t take my comments as “abusive”.