Is it normal to feel sad after an altercation with friend

This is why I prefer to go places alone. I don't like to bring a guest, because I don't want my good time to be cut short. I also used to always ride alone.

You went on the understanding that the evening would go one way, but your friend decided to change her plans mid-evening. She had the right to do what she wanted, and you had the right to not go along with it.

If she was truly a friend, she would have talked to you about what was going on, and you could have reached some sort of compromise. In fact, it sounds like you were willing to compromise because you stayed for longer than you intended, but she was more interested in having fun with her work colleagues than being with you.

I don't think you have any reasons to feel remorse. You had enough self-respect to recognize you weren't having a good time, and you removed yourself from the situation. She made her choice to stay.

I dislike adult game-playing when it involves people I know. If I'm there as a "friend-of", and I know nobody else, I feel no compunction at all in sitting out the silliness or telling my friend that I'm leaving and just leaving them to it.

Frankly, your post makes it sound like your friend is very definitely the dominant one in your relationship, and you feel you need to go along with what she wants. Is this because you fear she'll stop considering you a friend if you don't comply with all her wishes? If so, that's not a very healthy or positive relationship.

I think its Ok ;)

Thank you, RoseIsabella! Yes, going alone is sometimes better! And you can leave when you want!

Fuck you, you fucking idiot.