How do I deal with being left out?

[Anonymoussss]

So basically all of my friends, literally all the girls in my group, all went to New York City for a model UN trip, even though that may sound somewhat boring they get to do a bunch of cool stuff and some of them are honestly being really insensitive about me not going they literally talk about it every second I can't handle it, and i know when they get back I'm never gonna hear the end of it and I'm gonna have to see pictures on social media websites and apps and it's terrible. I can't afford it like they can and it's really hurtful that they're being insensitive about it. What do I do?

[Andrea]

They probably don't realize how you feel, let them know if they are good friends they will understand, say something subtle or for example just change the subject. As for social media I would just not look, I mean it's just a picture. I know it feels unfair and like the world is revolving around them, just remember their trip will be short and it won't even matter in a week