Seriously need advice on this straight girl issue

Hi Reddit!

I'm seriously in like with a straight colleague/friend. We're pretty close and hang out with the same group. She knows I'm gay and is okay with it.

I'm really trying to ignore this stupid feeling I'm having right now but it's really difficult especially when she demands attention or touches me. Seriously considering to tell her just so she could reject me and I can move on but at the same time I'm worrying that things will be awkward at work. What do you guys suggest? Should I tell her or not?