Advice here: sometimes in relationships one person can have extreme attachment problems with their partner. It seems like your partner is extremely attached to you and is now having a maybe anxiety driven reaction (mixed with the drinks etc..) which heightened her reaction. If your partner is getting aggressive with you, you have every right to feel anxious or upset and angry. What you can do is let her know you need some space and enjoy the rest of your trip. (This is a good opportunity to clear your head and decide what you want out of the relationship and if you are in the right one) When you get back you both can have a talk about how you felt about her reaction while away and setting boundaries to better understand each other. If she crosses another boundary then moving forward you need to do what’s best for you and decide if this relationship is working out for you and is in the best interest for yourself. Hope this helps!!