Domestic violence support group

My husband and I have been getting in arguments and they're leading to violence on both sides. I need a support group, someone with experience to talk to. We have a great relationship for the most part. I don't know how it happens but one says something then the other reacts. I throw stuff or get out of control emotional and he's ended up hitting me a few times.  we're both short tempered and very emotional people so it's getting out of hand. We want to be together but we need help with our tempers. We have a 3 month old who's obviously a huge reason we want to make this better. Anyone know of any online support group for who have dealt with something similar?