Is AUTHOR wrong in the post ? POST : TLDR: My ex wanted to go to a movie with his friends. I told him no. He kept pushing because I'd be awake all night resetting my sleep schedule so I could watch her. This led to an argument. AITA?

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My ex and I are not together, but we cohabit and coparent. I'm in the process of looking for my own place and figuring out childcare and custody.

During March, I have to do an externship with one of the major hospitals nearby. The commute can range from 45 minutes to an hour and a half one way. Shifts are 8 1/2 or 10 1/2 hours long. My preceptor has me on a hectic rotation for this month so I can meet my hour requirement. 

I've let my ex know about this in advance. He was fine with the schedule,  but mostly upset because it meant he wouldn't see his friends for a month. He goes out dancing Fridays and Saturdays. Sunday through Thursday nights, he'll walk over to one of the houses of his friends and stay drinking with them until 2 in the morning. I'm always the one who watchs our kid during those times.

Yesterday, I had just come home after finishing the morning shift. After he finished telling me about his day, I told him how I wasn't looking forward to resetting my sleep schedule with so little time. (I have the midnight shift tonight.)

A few hours later, I'm helping our kid clean up her room to get ready for a bath. He comes in and tells me his friends are going to see Captain Marvel and asks if he can go. I say no. He asks why and I was planning on getting groceries shortly after I put our kid down for bed. I said was already really tired and I didn't trust that I wouldn't crash at some point. He leaves then comes back a few minutes later. He says he can be home by 9:45.

I asked him if this was going to be a reoccurring issue when I moved out amd we had split custody. He told me that he wasn't going to see his friends in over a month and this was the only time he could. He said he had already told them he'd ask me when I got home. He asked me what the big deal was since I was going to be up all night anyways so I could shopping at any point.

I got mad and repeated that I was tired and I wanted to get the task of having to drive somewhere over with first thing. I reminded him of how often he goes to see his friends.

Our kid hears our voices raising and she hugs me and hides her face in my leg. It kinda deflated the argument. I tell my ex that I didn't want to talk about it at the moment. He agreed but said that we will talk about it. Our kid asked if I mad at him. At the same time, he said no and I said yes. 

After I put her down for the night, I sat on the couch with him to see if he'd want to finish our talk. He didn't say anything or look my away, but was furiously messaging people on Snapchat.

After I came back from shopping, he told me he was going to walk over to one of his friend's house. I told him okay. He came back at almost 1 and went straight to bed. AIAA?