Today, my ltr and I went to go study for finals. Right before I left, something came up so I was going to be 10 min late. I called her and she said "are you kidding me" in a very bitchy tone. I dismissed it and I arrived 10 min later. When I get there I tell her "are you out of your mind talking to me like that". She goes "haha I was messing with you, lighten up". Then she was in a bad mood. So I go "if you don't wanna study I'm gonna leave", she says "ok go". So I leave and about 30 min later she sends me a long text saying, "you ALWAYS keep me waiting, so fuck you." That's just a part of it. What is the move from here? Edit: she just said, "if you ever talk to me like that again you'll be single so damn fast"