I got talking to a younger woman at work about four years ago. It's a big company so we tend to run in to eachother only weekly. We were quite flirty at the beginning but she then mentioned her boyfriend in passing. I was a bit gutted but having been cheated on in the past, I didn't act on anything, we just carried on being friendly.
She's still with the guy but regularly asks me out for coffee, refers to me as handsome, gives me a lot of hugs and texts a lot. She's a lovely person but should I just forget about her? I always get the feeling she'd leave her boyfriend if I admitted how I feel but I guess I could never be 100% and he seems a nice enough guy to be honest.