Guys, please help.

1- She is my coworker

2- IOI's: Rubbing my biceps two times, playing with her hair while talking to her, playing with her earlobe

3- Asked her for lunch inside the company ( I am trying not to rush things as she is a coworker )

4- Went to lunch. She turned the lunch into a "date". Questions like what did you do in weekend, how many languages you speak,...... She even qualified her by eating health and lying she goes to gym.

5-Honestly, I didn't DHV at this lunch as I have one already since we work together plus I did before and it came out as bragging. In addition, I thought I already got her hooked and no point for me to come across as trying since she was the one who was already trying to impress me. Plus, it is lunch inside the company, I thought I would run my routine in a date .

6- Next week, went and talked to her . She held eye-contact and twirl her hair. Good sign to proceed.

7- Few hours later, went and talked to her again . She held eye-contact. She twirl her hair.

8- Her sister's BF is Egyptian like me. "MY girl "doesn't like him at all.

9- Asked her out on date. She said she has boyfriend . Confirmed .

10- I told her I never thought you have a BF or at least you look unhappy in this relation. IT made her crazy and kept asking why I thought she is not happy.

11- Pushed more to get her number.

I didn't care that much. But I think I screwed up at #5, as maybe she was looking for upgrade I should have DHV'ed more???. But at the same time, I can see she is still twirl her hair while talking to me . This happened twice after this lunch.

What do you think?