I've been seeing this girl for 5 months. The day before this happened she said her family was coming over and that I should meet them. She calls her grandma and her mom and tells them that I will be there at 12pm.

I get there at 12pm and meet her mom's husband. While we're standing outside, she comes out. We're standing there and she introduces us not knowing that we already met. She says that I'm a guy "who randomly decided to show up." I say, "Did you not tell me to come at 12pm the night before?" "Yeah but I haven't spoken to you since then. Also I can't have you up there because it's messy. And it's because I need some time with family first, y'know?" "...Do you want me to leave?" "Can you just go get a coffee or something?"

As she's coming inside she motions me to my car as if I am some fucking dog.

I walk to my car and drive off. She doesn't call me back.

Everything was cool the night before. What the fuck happened?