Girlfriend going on holiday

I'm feelin uncomfortable with me girlfriend of 3 months goin away on holiday to aye napa with all her single mates, every time I try to speak to her about it we argue but I'm unhappy with her goin and don't know what to do?

its understandable that your feeling that way most new relationships do and its hard to determine what to think or say but you have to understand that the first step in a good relationship is trust and if you dont trust her do you honestly want to be with her and if you do, do you think she honestly wants to be with you i know its hard to understand but your just going to have to come up with your own answer and find out what she thinks too, sorry that if im not that helpful.