The rest is pretty anti-climactic.
I got home and was locked out. I heard fucking from inside and loud music.
I couldn't tell if the screaming from the girl was my GF or her friend, since I've never heard my GF make any sound even close to that in bed before.
Anyway, I called my white friend who came and picked me up and I crashed on his couch.
Got home the next morning and our bedroom smelled strongly of sex and I found a magnum XL condom in the bedroom, but she maintained that it was only her friend doing the fucking.
She said she went to bed which is why she didn't hear me knocking or get my texts and calls.