Ok, so, we're both 20 and in college. Starting last May we moved in the together and it was basically established that we'd be roommates for the next 2 years (we'd just started our 3rd year in uni). We are also really good friends.


For some context, they (I'll call them M) started dating someone (call them A) around January of this year. As soon as that started, M &amp; I's relationship pretty much sank in terms of time we spent together. I would literally never see them for weeks and they would hang out with their partner 24/7. Everything is now a We for M. and for the record, I don't like A at all. I think they are awful for M and is taking advantage of the fact that M is desperate for a good relationship with someone who isn't transphobic. 


So the situation is that M told me that they (M &amp; A) are planning on moving to a different state (think Midwest to West Coast) this summer with A's best friend. Although the plan is dependent on if A will graduate this spring. I am annoyed by this because 1) we had agreed to these roommate plans before they started that relationship, and if I won't know if I have to move until my lease is up (next May) that's going to be shitty as fuck 2) we adopted cats together. they're supposed to be our collective responsibility (although tbh M barely spends any time with them because like I said they spend all their time with A. I'm the one who feeds them, makes sure they get playtime in, and cleans the litter boxes most of the time). and 3) I think moving halfway across the country with a partner you've been dating for barely a year in your twenties is a fucking AWFUL idea. 


We have a pretty direct relationship so I have told M point 1 and 2 straight up although not 3 - because i always tell them problems I have with A and I can tell they just get annoyed by it and don't really take it seriously. But I have just been feeling bitter about this whole thing along with A and also wondering if I'm the asshole because apparently M's relationship to A is more important to them. M said they still would want to be friends with me if this happens but honestly I think I might be too resentful. And I really do respect the seriousness of romantic relationships but...M &amp; A are barely compatible roommates and all "compromise" in that direction is composed of M having to deal with something A does that M doesn't like. 


Also A is basically moved in to our apartment and sleeps over every night even though they aren't on the lease. 