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So much wrong in your post,you've made a lot of elementary mistakes but they can be fixed .
1. You never ever make plans with a chick you're trying to fukk a damn week in advance. They're fickle like that.
Also it wreaks of you not having many options or anything better to do (in her eyes).
2.Always call a girl the day or night before as a friendly reminder and once more and hour before a date/party/lunch /smoke session or whatever starts, TELLING her to call you when she gets there(to your place/hotel/ restaurant etc). Meaning you already let her know that you've assumed she's coming.
3. Get off WhatsApp(social media as a whole) you can use it to chat to family and genuine friends but when it comes to Pussay it's cryptonite. Example what is your definition of a "good chat"? coz I can almost guarantee you there's absolutely no way to build a "vibe" off chats. In most cases it makes you too visible and accessible and thus not that intriguing(to new p*ssy). It's harder to be metaphorical, innuendo, insinuate or sarcastic in a chat format and you always come off as plain or run the risk of being misunderstood by her dumbness.
But the most elementary mistake you made (*I'm t pretty sure this Lil chick is flames and potentially outta your league looks wise) , anyway the mistake you made was making plans with only one girl. Always have at least 3, preferably 18-30 chicks that you can always call up. Meaning you invite as many girls as you can. But you also let a few other girls know that you might swing over their place AFTER the party/date therefore if the party is whack or no cute chicks show up or they show up but are full of shyt, you can hit up 5 chicks and say "ey I told you I'd swing by can I come over in an hour or so".
You must always always expect a bytch to flake on you and make sure you have so many options that you genuinely are not bothered whether she shows up or not.
she probably could smell the lack of options which manifests itself as what dumb bytchs call "thirst".
One time I had a chick on an unofficial date being very direspecful and overall c*nt. Instead of engaging with her I picked up my phone and made a call..
first caller: "Can I come over?"..."Ayt then, no problem maybe some other time."
Second caller: "Can I come over?... did you cook or should I bring something? Okay I'll be there in 15min or so".
Third call , but now I simply told her "ey I might be coming over tonight what rime you're gonna sleep?...ayt thats fine I'll text if I can't make and we can meet up tomorrow. "
I did all this in front of the bytch who I was on a date with and was being full of shyt. paid the bill and got up and left without uttering anything to her the entire time.
Also the reason I told girl number 3 that I might come over was if the girl I was going was also full of shyt.
is hope you see the vision here breh