Relationship with SO with newborn, when does it get better?

Does anyone else feel like they are fighting with their SO nonstop? For example we just got in a huge argument because I opened the front door and the dog barked so he screamed at me... earlier today I asked if he could watch the baby for 5 minutes as I switched (his) laundry around and he got upset at me that it took longer than 5 minutes. I hate that I’m feeling this way and it makes me question everything even though he is a great dad and I love him.

Is anyone else feeling this way? When does it get better? 🙁