Hi!
You sound like you’re dealing with a lot of feelings of jealousy and inadequacy. But relationships are a choice, and it sounds like she chose you!
It’s not that unusual for young people who are getting to know themselves and figure out how relationships work to have casual relationships, especially in the context of a girls / guys holiday like you said.
She may have behaved inconsiderately during the holiday, but look at her behaviour now. If she says and acts like she wants to be with you, let the past go. Holding a grudge will only poison what could be a beautiful relationship!
Good luck!
