I'm mad at my girlfriend because she wouldn't take a shot
Why would you be angry at your girlfriend for not taking a shot?
She left me alone to take shots by myself
Your behavior is petty and small, you are angry at things that don't matter. Save your energy for more more important topics instead of harping on small things.
It's not petty. She said she would drink with me and she didn't.
Maybe she didn't want to drink. You can't force someone to drink if they don't want to.