10 months no contact and she reaches out to me, now what?

Long story short. I had a crush on this girl we had an emotional connection and things became to complicated between us. She had a boyfriend and I'm a nice guy. I didn't want to be the other guy. We'd talk when we had to sometimes our jobs lined up where we may run into each other BUT very RARELY.

Anyway I defriended her on Facebook 10 months ago and had absolutely zero contact. I honestly thought she forgot about me.but anyway I defreinded her because I just needed to be away from her, didn't want to see her having fun with her boyfriend. it hurt. Now she contacts me on Facebook after al this time. At first friending me and after I accepted it, she asked "how are you" I gave a her brief response because I didn't want my laundry out for the FB community wall to see but we spoke through IM's. any way she asked the usual stuff and after a few correspondences she re gave me her number :) - the smile face was in her response and her number to me was unsolicited. Its been a week and still don't know if I should travel down this rabbit hole. I think she still likes me but she wants her cake and eat it to. she won't leave her boyfriend. I need opinions from both sexes. Forget her, leave it alone... Truth is I still have feeling for her.
10 months no contact and she reaches out to me, now what?
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