I 28 M broke up with my 25 F girlfriend of 2 years after she booked a girls trip

She booked a trip to Miami so I instantly broke up with her and have not spoken to her since, what do you think about this? Definitely some will call me insecure but it’s not the fact I think she will be cheating that is the problem. It’s the putting yourself in a place where the risk goes up (without 0 thought for her partner). I would not go on a guys trip if I’m in a relationship.

I’m also not naive, the odds of cheating go up a lot when on holiday. Going on party holidays in a relationship is such a horrible play, I can’t believe people would stay if their partner does this.

My relationship is definitely over so this is more of a ‘what would you do’