Took advice of not shitting where you eat even though the job isn't in my field to say the least.

From the get go this girl showed a ton of IOI's at me. I initially wasn't too attracted to her (like a 6-7HB) and as stated above, just didn't want anything like that at the time. She more or less persisted and few times she would initiate something and I softly turned em down.

Later saw her outside regular work clothes and her body put her at an 8 for me, so started thinking of getting it in. She was still persistent but kept reminding myself about splashing with the company ink so while i carefully tread on thin waters of not being so forward all that happened was me showing some mild beta tendencies (I can go into detail later..) nothing cringey at all but I noticed she started getting really needy for attention thru text or at work but turning down my offers in meeting up.

So I have tried to pull away because i think she's wanting me to orbit, but still acting in my regular emotion in a manner that doesn't look like i'm butthurt about it.

Just recently I found out she's fucking some guy off tinder. So immediately wanting to cut her out completely. Want to make it clear I will not be giving her any orbiting behaviors.

Question is how do i handle that at work with grace? when i heard the 'news' the emotional me wanted to tell her to go fuck herself next time i saw her just cause she was the one chasing and now i'm feeling kind of dumb but thankfully I've had this grace period before next time i see her to act more rationally...

Any advice?