u/Expensive-Limit-338

Me M18 and girlfriend F18 have been together for 5 months. We have struggling lately. She has been breaking boundaries regarding drinks, and one night even ended up in the hospital. For this I set a boundary that when we go to uni in 3 weeks, we should both consider sobriety, as if she does it I want to show love by doing it too. However i’ve since been called controlling and manipulative in a fit of rage on the phone, and previous times she has been drunk has called me saying worse things. I don’t know what to do because this is my first ever relationship plz help

TLDR - my girlfriend has got drunk many times and hurt my feelings what do I do

For context, I love my girlfriend very much and this holiday was pre planned before the canon event.

My girlfriend is going away to Europe with a friend that is horrible to me and has openly expressed how much she hates me. My girlfriend is going away with her and the friends family and I worry I may lose her over this because the friend may influence her and say more horrible things, something she has previously done. The canon event was a party. She got really drunk because her friend got her to that point and she then hurled abuse at me before throwing up on me. Now this has me in a really uncomfy spot. I have told her how much I dislike her going but she wants to still go. I got angry but I didn’t think I was horrible as I don’t want to be seen as controlling her or being over the top.

AITAH for being angry?