She was my college 'roommate'. = We were 'roommates' in college.
(..) why I'm in Berlin or what I'm doing. Something about Captain America going crazy. - This is you. PETER: Oh, we're neighbors? We're not roommates. Suit up. Okay, Peter, you got this. HAPPY: What the hell are you wearing? - It's my suit. - Where's the case? - What case? (..)2017 Spider-Man: Homecoming