Is OTHER wrong in the post ? POST : One of my friends, let’s call her Sarah, asked me the other day to look at apartments with her for next semester. We live in dorms right now and in the fall we’re going to need a new place to stay, so I go with her. Sarah asks if I’d be one of her roommates, and I say yes, not thinking much about it.
When I get home I start thinking if it actually is a good idea or not, and I start remembering all of the times her roommates complained about how loud she is, how she wakes them up in the mornings, has super loud sex, etc. I could probably deal with most of this stuff without causing issues, but both of our boyfriends are living together and I know it’s gonna drive me crazy if Im trying to catch a break at his place and she’s there.
So I call her, probably about 3 days later and say “hey I don’t think it would be a good idea if we lived together, I value our friendship and I don’t want it to suffer if we have any issues” I even put the blame on myself and told her how much my current roommates irritate me even though they do nothing wrong. 
She took this surprisingly well, and even THANKED me for telling her how I feel. She said she agreed, and doesn’t want our friendship to suffer. 

Well, two weeks later my boyfriend gave Sarah and her boyfriend a ride and he told me she started talking mad shit about the whole situation. She was calling me selfish, that I should’ve told her sooner. I don’t know what all she said but for a good 5 minuets she was telling my boyfriend what an awful person I was.

I don’t know what to do at this point. If I’m being a dick here I’ll go apologize and explain the situation better. But if I’m in the right- and shes still calling me names to my boyfriend, I don’t think I would want to be friends anymore. It seems a bit childish and unnecessary. I don’t know. I need to know I’m not being the asshole before I take any action. 