Scared to leave baby with his dad

My fiancé and i have been together for 5 years and we have a 7 week old son. I have 4 weeks left on maternity leave, and i’m worried about going back to work because his dad is going to be alone with him for about 2 hours a day since i get off work at 6 and he gets home around 4.

He can’t handle the baby crying for more than 5-10 minutes without getting angry and he doesn’t try very hard to calm him down.

Yesterday i was getting myself together to go to dinner and the baby had been crying for a few minutes. His dad got angry out of no where and put the baby on the bed and got in his face and very harshly raised his voice and said the baby’s name.

I told him calmly that he couldn’t do that, and that hes a baby and won’t respond to yelling.

He said nothing and just put the baby down near me and got on his phone (which is how hes spent a lot of his time). He didn’t talk for about an hour and a half after, which is usually what he does when he knows he got too upset and acted inappropriately.

If he can’t handle the baby crying for more than 5 minutes without getting that upset, what am i supposed to do? My schedule changes over the summer, so i’ll be picking him up in june but i still have at least 2 and a half months of his dad doing it.

I hate that i’m this scared. Hes honestly really good most of the time, and i know once the baby gets older he’ll be much better with him but its spiking my anxiety now.