Did I blow up my chances with her?

Anonymous
I started working in a company and I met this colleague whose I felt since I met her that she is into me. She used to act nervous around me. She looks down when we make eye contact and catch her looking at me from the corner of her eyes. She complimented my physique couple of times. I always feel that she is nervous around me and can't maintain eye contact when she talks to me.

I glance at her several times and she caught me many times. She definitely knows that I like her. Recently the HR who is pretty close to my crush teased me about it in an indirect way multiple times.

My crush and I we don't talk that much but we occasionally joke and it is always with a group of people.

I added her on facebook Recently and she accepted. I noticed that she became more open to talking and we have lingering eye contact with smile when we greet each other which we didn't have before.

I asked her in facebook 2 days ago if she likes to hang out and she said that she just started seeing someone and she doesn't want to give the wrong impression. I overheard that she is single and I doubt much she is seeing someone

Next day in the company we greet each other but what I noticed that she is checking me out and caught her multiple times. I feel like I asked her out too early and she was not comfortable and ready yet to go out with me? Any other explanation. Did I blow up my chances?
How to act around her in order to fix things up?
Updates
+1 y
Today and a day after I asked her out I had to talk to her something in regards to work and she could not look me in the eye she was talking to me with her eyes looking down all the time
Did I blow up my chances with her?
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