Something about this story doesn't add up...
If everything you said is true, then I suspect something else is going on that you don't know about. It could be something that isn't as bad as we all think (a pure affair), but nonetheless that means that she's keeping something from you. That isn't the basis for a good relationship.
Were you at the Christmas party yourself with your girlfriend the whole time? If you weren't, then I think something may have happened at the Christmas party AND at the hotel room. Everything you know you know second-hand. Any amount of the information you have could be distorted and possibly unreliable, especially anything involving the hotel room after 11pm.
I think you need to come to grips: she cheated on you. If it quacks, smells, and looks like a duck, it's a duck.
Confront her about it now. If she's willing to keep up the lie, then it's time to end things. Dishonesty (especially if it continues), in my book, is a lot worse than one mistake.
If she tells you the truth, it's up to you to judge how bad her decisions were.
It's because half of them are sexually repressed.

If everything you said is true, then I suspect something else is going on that you don't know about. It could be something that isn't as bad as we all think (a pure affair), but nonetheless that means that she's keeping something from you. That isn't the basis for a good relationship.
Were you at the Christmas party yourself with your girlfriend the whole time? If you weren't, then I think something may have happened at the Christmas party AND at the hotel room. Everything you know you know second-hand. Any amount of the information you have could be distorted and possibly unreliable, especially anything involving the hotel room after 11pm.
I think you need to come to grips: she cheated on you. If it quacks, smells, and looks like a duck, it's a duck.
Confront her about it now. If she's willing to keep up the lie, then it's time to end things. Dishonesty (especially if it continues), in my book, is a lot worse than one mistake.
If she tells you the truth, it's up to you to judge how bad her decisions were.
No s***. You straight people sure are messed up.![]()
It's because half of them are sexually repressed.