persistence in pickups

[thedustbustr]

so I've been reading a lot of ASF and other pua websites, not to become a pua, but to become more natural and more popular with women in general ever since i got out of my LTR. These guides say that persistence is a very important trait. They also say that once a girl shows even the slightest signs of no interest/disrespect/whatever, move on.

This seems to contradict itself.

Case study: i kiss close a girl at a bar, go home with her, happen to forget her name and get caught, she says she has her period when i try to steal third (probably bs). anyway I set up a date to a local indie battle-of-the-bands to see a set that we both have friends in, she seems to react positively on the phone during brief conversations to set it up, but then she shows up 45 minutes late with 3 girlfriends and a weak excuse. obviously this is the tldr version bc these things get long if i post all the details. i can post more if it matters but probably not.

so ASF would say to eject her because of the disrespect, but it also says to be persistent and try try again.

someone please give me some direction.