My ex once got so drunk she came in and squatted over my bed and pissed in the corner of it. I couldn't stop laughing and after she managed to have enough to control to clean herself up, I just popped her on the sofa while I changed the bedding then went back to bed.
I ribbed her in the morning about it and that was the end of it. She didn't say "get out" or anything like that though, she was incapable of speech.
Just talk to her when she's sober if she's a friend worth keeping. Shit happens... Just be glad shit didn't happen that time.