Need advice please


My husband just recently told me he wants a divorce we've been married 4 years and have 2 daughters ages 1 and 3 baby number 3 will be born in 3 short weeks him asking for a divorce came out of no where he's been acting weird and any time I try to talk to him he just leaves the house he's been verbally and physically abusive and he's gotten help before but it dosent last long because he just stops going and says he dosent need any help I love him truly and want our family to stay together but it's like he just doesn't care any more I recently found out he's been talking to other people trying to meet up with them so I just want to know what would you do if you were in my shoes?