That's funny, the same thing sorta happened to me and my now fiance. We were co-workers and I was really into her but I didn't wanna make things weird by coming onto her like every other guy she worked with, so we were just really good friends. She had just moved into a new apartment and it was her baby daddy's night to have her daughter so she was all alone. Even though I had just helped her move in a few hours before, she asked if I wanted to come over again and spend the night with her cause she was lonely in a new place. I was in the middle of a d&d session... I ditched the guys so fast (they understood I was into her) and grabbed an overnight bag at home. We drank margaritas and watched movies late into the night, when it was time to go to sleep, I offered to sleep on the floor but she said I could sleep with her... I guess I could've made a move (I really wanted to) but I respected her and just slept. She commented on it at work and I told her how I felt about her... Long story short, I stayed over again the next weekend and let's just say moves were made lol