We've been together about six months and since I just had spring break it came up that I have been planning to go on a spring break trip next year with some friends of mine from school. My friend group has been talking about this senior spring break trip since we were all freshman. The majority of the group is interested in going to Las Vegas, and although I'm not particularly in to Vegas, I'd love to go anywhere with all of them.

When I mentioned to my boyfriend that this trip was in the works he got pretty upset and said that it was "weird" to go on trips without your significant other, especially to Las Vegas. He said he used to be fine with girlfriends going on trips but an ex cheated on him while on a trip away from him and now he's not comfortable with it. He even went so far as to call it a dealbreaker and say that he would break up with me if I went on such a trip.

Questions: 
* Is he being reasonable? I understand that Vegas might seem like a sketchy place and many couples travel together, but I want to do this trip with my friends and that's where they want to go.
* Am I being reasonable if I decide to go? (If we're still together then of course) Is it worth giving up a great relationship for?
*Would you go on a trip with your girlfriends without your SO? Would you let them go on one without you?
user
my boyfriend is against me
assistant
We've been together about six months and since I just had spring break it came up that I have been planning to go on a spring break trip next year with some friends of mine from school. My friend group has been talking about this senior spring break trip since we were all freshman. The majority of the group is interested in going to Las Vegas, and although I'm not particularly in to Vegas, I'd love to go anywhere with all of them.

When I mentioned to my boyfriend that this trip was in the works he got pretty upset and said that it was "weird" to go on trips without your significant other, especially to Las Vegas. He said he used to be fine with girlfriends going on trips but an ex cheated on him while on a trip away from him and now he's not comfortable with it. He even went so far as to call it a dealbreaker and say that he would break up with me if I went on such a trip.

Questions: 
* Is he being reasonable? I understand that Vegas might seem like a sketchy place and many couples travel together, but I want to do this trip with my friends and that's where they want to go.
* Am I being reasonable if I decide to go? (If we're still together then of course) Is it worth giving up a great relationship for?
*Would you go on a trip with your girlfriends without your SO? Would you let them go on one without you?
user
I want to go on
assistant