She will cancel at the last minute and when I talk to her (either by phone, text, or in person), it's pretty clear she wants me to be angry. I hate to use PUA lingo but it feels like a shit test. Usually I don't care and when I tell her as much, she will have this dejected look on their face; like I just told her I am afraid of bears. This has happened maybe 4-5 times that I can remember. The last two times it happened I acted moderately annoyed (the last time I actually was) and things seemed to go better. In all cases though I've continued to see the girl, at least for a bit.

Edit: For at least 3 of the girls, sex was on the 2nd-3rd date before this incident came up. Can't really remember what happened with the others but we probably had sex before this type of thing. Usually I aim for sex on 3rd date (though sometimes I'm pleasantly surprised).