HOLD UP! If you HAVEN'T texted her yet today, DON'TTTT! That is, if I'm understanding correctly and she already has the info of where you will be and when. You DON'T HAVE TO GIVE HER EVERY DETAIL, like who you will be with, what you're wearing, etc, etc. NO NO NO. Just where and when. Period. She CAN tell YOU what she will be wearing, that's fine.

Also, if she does flake, Monday CALL HER OUT ON THE FLAKING. Show that it doesn't bother you by busting her balls for it. And then let her know that you flat out don't put up with flakes, period. Give her ONE more chance and if she flakes, shes gone from your life.

DON'T overanalyze either. About the Facebook thing, it doesn't even matter right now. You don't have to even acknowledge a message from her on there. Just forget about that site for the moment. Focus on having fun this weekend and if she doesn't show, BUST HER BALLS FOR IT. Something like, "Had a blast Friday night. Too bad you missed out . . . you flake," as you look her straight in the eyes while saying "you flake". Then, when she makes up some excuse, you can either listen to it or cut her off, but either way, you lay the rule down right then and there and tell her you don't put up with flakes. Basically, you're verbally pushing her away. Use some subtle body language too by turning your body away from her a little, like shutting her out. If she's not interested, she'll start letting you go immediately from this. If she is interested, she'll try to get you to "come back" to her, at which point you let her know she has ONE more chance, period.