When I said we work well together to my co-worker she replied, "Yes I agree!. Think we make a good team. It helps working alongside someone who shares your opinions. Great minds think alike."

She has been off work and I told her when she came back that I missed her. She replied, "I missed you and you make working in this job more enjoyable. Would be no fun without you. Am back now and I'm not going anywhere. Glad you missed me. LOL"

I will be taking some vacation time soon and she replied, "Will try to manage without you and I can text you on how bored I am ha ha and moaning all the time about work and other colleagues because you're not here LOL"

Not on the basis of working together it won't. Injecting romance into a work relationship can be a disaster and destroy the working relationship, or a friend hip. I know its tempting to want more from a good thing at work, but the downside is that relationship problems also affect your job. High risk with low reward.