<human>: I (26 F) run my own company and work with a ton of contractors. Recently on a new project I have been working with this new contractor (32 M). He is gorgeous, sweet and I am totally like him ALOT.

I have been very friendly but not over friendly since he has a gf. He has had this gf for a short time and doesn't speak about her a lot. I had an extra ticket to a concert last week so I took him. He was very eager to come. We have been flirty on text, and when I asked him what he told his gf he was doing the night of the concert he said he lied and said he was working late. 

I have no idea what to do.

Can you summarize the given text in a few sentences?
<bot>: I (26 F) really like my coworker (32 M) have no idea what to do as he has a gf.