I will try to keep this as concise as possible.

A year ago i met this girl in a club in my university. We hit it off we have contact and no contact for some time. Sometimes i fuck up with her sometimes i don't.

Fast forward to this year, we both "promoted" and now work together. Things are going great, constant teasing, constant touching, everyone knows we are friendly AF

One day, i stay late in uni, we grab a late dinner then go to some mini-party hosted by the university. We are there dancing, and genuinely have a good time.

On the way back to her apartment, she stops for a moment because she is feeling some pain somewhere. ( Yes i know that this was my cue to go in for the kiss) However i did not.

I did not because she told me previously about some personal things, so i took it for its face value and i decided to take it slow.

After that day, we are still cool and normal. I ask her to go on friday, she says she can make it. Texts thursday saying she's sick and she can't make it. ( She is genuinely sick I work with her so i know)

Saturday rolls by and she is exteremly cold, and continues to send the message that we should keep everything work-related. ( If i joke in texts she brings the subject back to work, when we met to get things done she emphasised we will keep meetings to a minimum, and it was just a cold meeting with zero kino. She even slightly moved back when i was reaching for the computer to do something)

Sunday rolls by and i see her with this guy. Im boiling inside, but i keep it cool and try to keep things strictly work related.

Monday rolls by and i see her with the same guy, and i greet the two of them.

Now the things that fucking with my head is why on earth will she go 180 degrees on me and completely change her attitude in 3 days? I mean yes i did not escalade, but i did ask her out furthermore, she went cold turkey on me. Now this girl is a solid 8. Did me not escalating hurt her ego so bad she thought I'm not interested?

Anyone got a reason for this?

Another thing, is there a way to get things back to "normal"?

Most importantly, do i just proceed with the mindset of "work only" that she hinted at, or do i sit her down and ask why she changed her attitude?