To divorce or no

Life is good 90% of the time but the 10% is awful. My husband can be such an asshole, just out of no where in a horrible grumpy mood and ruins all of our day. It makes me so down and in those moments I wish he would just leave and never come back. But then it’s fine. Wonderful even! It’s such whiplash. I will add he is a great great father. The only thing that bugs me is he looks at his phone a lot even around the baby. I feel like it’s best to stay together for our baby but honestly at the point that I really don’t even care to work on anything