GF is mad I didn’t sleep later

I [20M] wake up early in the morning. 7-8AM, I sometimes run, go eat a light breakfast, spend a few hours doing what I’d like to enjoy the start of my day. My [19F] girlfriend wakes up super late she loves to sleep in. She will wake up at 11AM-1PM on a weekend. No problem. Recently she got mad at me for not staying in bed. I wanted to work on a project I’ve been spending a lot of time on all week. Granted I’ve spent multiple hours with her as well and try hard to pay attention to her while I’m working on this project. Yesterday we woke up, went to the town just next to ours and met with someone. Came back, played with her new bird she just got, cooked food together, ate together and watched YouTube. Spent time together, then I set up a video game up for her that she wanted to play. Let her play until she was done, by then it was night time. She went to relax in bed, I wanted to work on my project then but was tired to. I turned it off, followed her to bed and fell asleep first. I told her how tired I was. I wake up early this morning, and she woke up later than I did. Early this morning I woke up and went to work on my project after grabbing some food, let her rest because she enjoys it. I went to the bathroom about 3 hours later and she was playing with her bird. I walked over and greeted her a good morning and she was mad at me. I asked what was wrong and she just walked to the bedroom, I followed her and she slammed the door on my arm. I then got upset and talked to her. I didn’t change my attitude or talk any different I was just hurt by her being rude. I asked what was wrong and she said she didn’t wake up next to me and that I didn’t cuddle her last night. I got upset with her for being selfish and rude in my opinion and told her that. I was trying to be nice and comfort her, she shut me out (literally). And I left the room because she wouldn’t talk and had a brick wall in front of her. I don’t know what to do now, I’m just furious that she wants undivided attention and was so rude after me trying to start the day nice verbally. Should I have to stay in bed and cuddle with someone who sleeps four hours longer than I do. Despite me wanting to do things.

TL;DR – GF is mad because I’ve been spending a lot of time on a project/hobby I’m enjoying and I know this. I spent yesterday all day with her. Woke up early to go work on it, and she got mad at me. I tried to start the day warm and welcoming and sweet and she shut the door on my arm and bickered then wouldn’t talk after I rebutted at her. What should I do.