What do you guys think this would fall under.

A girl you've been with(nothing defined, just having sex) for 3 months, Amazing Sex, great connection. So you haven't chatted in a few weeks(got very busy), (last time you saw her you had sex) you hit her up and she's VERY excited, things that happened to her, etc. You ask her out that night and she says shes doing xxx, and you should join. you leave the convo with cool "well let me know once you guys know where you going"

Then dead air.. 2 days past, no text, or any explanation.

Is this a full flake? No.. there was nothing set. Do I still consider this a flake? Yes. She said she would contact with details/on what she was doing.

What's odd is how excited she was, voice, etc. She would even repeat the phrase "you should come out with us" several times.

My mind is spinning on the different scenarios, and how I should treat this. It's a bit bizarre.

A flake is when you make solid plans (or even rough plans with a timeline) and they cancel at the last minute... leaving you standing there holding your dick like an idiot.

We've all been there.

What you have sounds like a courtesy invite, not a flake - and she either didn't really want you there, or maybe her plans changed or she got busy, or drunk or with another guy or something.

If she's just a fuck-buddy you've got to see that for what it is... wasn't a date - there wasn't a flake.

If you want more than a fuck buddy you're gonna need to have that talk with her.

well said and I believe spot on.