My take on what you've just said;
She text me asking her if i was meeting her still, i replied if shes wants me to
This makes you sound insecure and unsure. You left the decision up to her which is a no no. I'm not sure if the idea was to 'play hard to get?' If so It doesn't come off that way.
She then replied with "if your busy ill goto my mates for lunch xx"
I see that as a **** test. Basically baiting you to beg to see her.
i text her back saying something along the lines of well i want to see you what are you doing then going to your friends or meeting me
You 'want' to see her? Sounds like you 'need' to. Then you gave her the choice of seeing her friend over you? This sounds both needy and again insecure. Of course she would want to see her friend over you, but should you give her the choice? No.
In my opinion you should have said (not in a stroppy way) that you're going out to eat anyway, and if she still wants to join you then she's welcome, if not then no biggy.
Fair play the story about her x kicking off could be true, but from the sounds of it she would probably of had more fun, in the emotional sense, than she would have 'probably maybe if you want me to' lunch with you.
This may sound harsh but I mean no offence and am just offering my take on the story. As someone said, look up basic 'pick up artist stuff.' Don't get bogged down in all the pick-up lines and routines, but focus on how to display yourself and handle yourself around women.
Basically, make decisions, stick with them, believe in yourself, don't get taken for a ride and have fun!