Not sure what to do

Me and my husband and a 10 month old together and we both work full time. My husband has to work weekends but he doesn’t have to go into work till about 12 everyday he’s a chef. Yet I wake up some morning when I don’t have to work and he’s gone and isn’t answering his phone for 30 minutes to an hour then says he went to go run errands and went to the store. Or he calls me when he’s getting off work to tell me he isn’t coming home he’s going to his mothers to soak in a tub after a long day.. then doesn’t come home for another two hours. I’ve asked him to help me and be with me more considering with our work schedules I hardly see him already I didn’t think it was too much to ask for an hour or two to spend time if we can but he bitches that he has things to do. Idk what to do sometimes I’m so stressed with our son and I tell him I need help and all he can say is he will after he gets done doing whatever. Even though what he says he has to go do isn’t important and can wait.. I don’t know what to think