My partner F (20) and I M (21) we got a little bit of a talk about her upcoming birthday this July. She opened the conversation first saying that her friends wanted to celebrate her birthday together. And her friends specifically said that they must celebrate on the exact date, so she said to me that "Maybe we could just celebrate the day after?" I said to her why not I could just come and join them, but she said that it would feel awkward cause I am the only boy there. I gave her an idea that maybe they could celebrate it the day before. But she has not given a clear answer yet. But then my jealousy side acted up and I kept saying things that makes her feel unsure about going with them. Like "Are you really okay with that?" "But we have always celebrated your birthday together." she then said that "Nvm I will not go with them anymore." in a way that she's mad or like upset, and I feel so wrong for doing it, and I deeply regreted what I did. I said sorry to her about it and she haven't responded yet, we are 5 years in our relationship already, we started since highschool when we were 15 and 16, and now we are on college. I just couldn't handle the change in our situation now.
I just wanted to share this because I feel so guilty about it. Feel free to comment anything.
(tl;dr: My girlfriend and I talked about her birthday plans. She wanted to celebrate with her friends on the exact date and suggested we celebrate the next day instead. I got jealous and pushed back, which made her feel unsure and eventually cancel her plans. Now I regret how I acted, I’ve apologized, and I feel guilty because she hasn’t responded yet.)