@Master Disaster
See, you're doing all that PUA social dynamic stuff but with no inner game to back it up. Social dynamics is really cool stuff and fun to learn about, but don't let it control you or neuter your experiences with other people.
It's good when you treat it like something natural.
Simplify it for yourself, because it's truly all simple. People who perceive it as simple are fun to be around, and they socialize effortlessly.
I'm not saying be a creep (no social awareness or caution), just improve yourself.
You're still in the 'fake it until you make it' stage, which is a perfectly viable place to be. I was there once. Its a good way to set yourself up for a reality check - nothing more, nothing less. Sooner or later you're gonna realize it's all boring as ****. It's like living by a ruleset, and constantly checking your steps to make sure the next step you make is the 'correct' step.
Once you're done this stage, you'll know what to do in certain situations just because of what runs in your veins. At that point, you are pretty well developed due to all the **** you've put yourself through both in your head and 'in field'.
When you see a girl you knew 5 years back as an acquaintance, you won't think about what you did 5 years ago with her. You'll give her your number and ask for hers cause you gotta catch up. And of course you'll be a little flirtatious or whatever. If she goes along with it, cool. If she doesn't, then whatever. Maybe you'll see her at a party sometime and she'll like who you are. Maybe she won't be into you.
You can choose to go all PUA on her and "turn on your game switch" as Mystery puts it. You may get to fvck her too, but only if you're a good PUA. And being a good PUA doesn't get you much happiness and self appreciation, it simply get you *****. If that's all you want, then be a PUA and do the step by step social dynamics stuff. It's shallow, but it works.
If you want to be a full person and bla bla, then move above the PUA stuff.
Right now you're being a PUA. Not a very good one, but it's a state of mind I was in half a year ago that really helped me. It's not a place you want to stay (unless you get good at it and want to sarge club and bar chicks), but it is a place I encourage you to realize is just temporary. It's a stage of growth.
You're trying to 'fake it until you make it' with this girl by telling her you went to an awesome party, when you actually didn't. That's not a BAD thing as long as you don't stay in this state of mind for too long.
The point of faking it until you make it is essentially ADMITTING that there is room to improve.
If this was your final destination, then yes... it's a very bad thing to lie to a girl to impress her. Duh. But if you're doing it just cause you're in that weak stage where you don't know what your frame is, and you're SO CLOSE to realizing that you really care about yourself and who you are and what you do in life, then don't worry about it. I went through the same BS you're going through, just know that I made it through.
And when you finally make it through, of course it's very tempting to go into 'game mode' with a girl you really like. I mean, you have all of this social dynamic knowledge, so you think that, whenever you feel pressured in social situations, then it's time to WHIP OUT the bigguns!
Don't do this. If you're growing as a person and you're fun to be around, then respect yourself and realize you have a lot to offer.
Of course, don't be naive by any means or ignore the knowledge you have of socializing, relationships, and crap. Also, don't improve yourself because you aren't successful, improve yourself because your mindset sucks.
I believe really liking a girl you've gotten to know is 100% acceptable. It's 'turning on your game switch' that fvcks it up for people. You start living inside your head and start caring too much about everything. You lose your frame and all sorts of nasty crap happen. Hopefully you get a reality check before you make a move while in this frame of mind, like I did.
Making a move while in this frame of mind is disastrous because you are being a chump temporarily for this one girl. You feel like an idiot because you're actually a really great guy but "fell into the trap" of trying to 'game' this girl when you're **** at doing the PUA spiel.
And you know what happens? You decide to give her space and distance yourself from her in order to gain some sort of frame for yourself (which is good), and you tell yourself 'if i wasn't being a chump, she may have been into me'.
This isn't bad, though. Just make sure when you pursue her again that 1) she isn't your oneitis, 2) you are, in fact, not a chump, 3) you won't turn into a chump, 4) your frame of mind is awesome enough that you're comfortable being yourself with her, 5) you don't think any of it is a big deal.
And when you start being cool and stop making big deals about nothing, then you may realize she's simply a hot cool girl. Dating her could be fun. It's not a big deal. You'll just see what happens.
The point of distancing yourself form her and 'moving on' is because YOU NEED TO HAVE THE DISCIPLINE TO GIVE YOURSELF SPACE TO MOVE ON. You are NOT ready to grow while trying to 'game' her, because you are relatively chumpish right now. Accept this and give yourself the room to improve yourself.
You shouldn't move on in hopes of making her miss you and making her approach you. That is a pretty cool side effect, definitely, but don't mistake your actions as 'gaming her'. You're improving yourself and getting your head out of the gutter. Period.
Edit: yes, I wrote too much.