Did he cheat ?

This morning around 9 I was doing my bf laundry and a hotel key card fell out his pants pocket and it had a number written on it in sharpie . I waited for him to get off to ask about it . He reminded me his coworkers were celebrating lastnight. I’m like oh yea I just didn’t know it was at a hotel . So I ask who’s number that was and he said idk call it . So I did and a girl answered and I said who is this and she said Marsha ...long story short she works with him and they shared a couple drinks together and she wrote her number on his card right before she left and that was it. She said That around 2pm....an hour later she txt me saying he also walked her to her car and she kissed him and he grabbed her butt before she got in the car and she claims he invited her back up . But she declined.

Idk why she couldn’t say that on the first phone call she waited ...my bf says he did share a few drink with her and walk her to her car but he didn’t touch her . He came home at 11.

What do y’all think ??