My husband is so selfish

I need some advice I look after our 7 month old Mon-Fri which is fine because my husband works full time and I love our little boy but weekends I expect a little bit of a break to do things for myself We have one car and I finally got my licence after years of trying. This weekend Friday evening he had a work do I agreed to drop and pick him up and ended up getting him at midnight even though I would be the one to wake up early Saturday to take care of our 7 month old, Saturday he had plans to drive back to his hometown to go for drinks with his friends which was fine and I knew he was going, for context we are staying with our parents temporarily, split between his and mine while our house is being done. Currently at my parents. Anyway so he obviously has the car I can’t just go out and run errands and I’m not turning to my parents to take me everywhere! Sunday he said he was coming back early so he could take over with our LO He didn’t even bother to tell me he was going to brunch with his parents (for context I do not like my MIL and since having our son she’s become a shit stirring nightmare) so he didn’t tell me he was going for brunch I was looking at the time and wondering where he was so checked find my friends on iPhone which we have for safety just in case god forbid something ever happened. Anyway so he was at brunch while I’m half dead looking after our LO, my parents help but they have their own things to do as well I don’t rely on them. His hometown is a 2 hour car journey so he told me he was leaving at 1pm and said he had left which was a lie because he was still at his mums house and got back to us at 4pm which means he left at 2pm. I confronted him about this this evening and said how upset I am that we agreed I’d look after our LO while he went out with his friends for one night but then took the absolute piss by going out for lunch on the Sunday instead of thinking ‘ah let me leave early so I can give my wife a break from the LO’ and he doesn’t agree he should be sorry about it? He said he did nothing wrong Am I crazy? How is this not wrong. I bend over backwards looking after our LO and do our laundry and do as much as I can to keep my parents home tidy He goes to work which is tiring yes but the fact he then decided to just treat Sunday as a rest day for him and get back late is ridiculous This isn’t the first time he’s been like this, and honestly I feel like I want to divorce him. I can’t take it anymore He never thinks about me! He barely spends any time with our LO Like he’s not interested I just ended our argument and told him I’m divorcing him. We’ve been married a year But if he’s like this now wtf is he gonna be like in the future? He can’t even think about his wife now or how I’m feeling He’s so selfish and I’m tired of it 😞 No mean comments please xx