<human>: I'm a 27 year old male and work at a store with a 19 year old female.  Over the past few months, she's been very flirty to me specifically but I did not express any interest in her at first due to the age gap.  She would find ways to team up with me on projects and we would be together every day at work until all the co-workers just assumed there was something going on between us but neither of us addressed it. 
 I am starting to like her but don't know what to do.  She texts me a lot and we chat on skype, mostly just joking around and flirty shit.  I'm pretty sure she has a thing for me from the hints she's dropped but I'm also pretty sure she has a boyfriend but whenever I try to bring it up she changes the subject or vaguely says he's a friend.  A few days ago I saw her randomly with a guy holding hands.  She didn't see me and later she texted me asking something and I replied and asked what the did that day.  She said something along the lines of "just hung out with a friend shopping".  Now I'm stuck in a weird situation where I'm not sure what's happening.  I'm still having reservations about the age gap so this might be a good thing.  Should I not pursue anything?  Cut contact? (difficult...we work together and everyone there sorta knows what's happening so they usually team us up anyway) Stay just friends?  She doesn't seem to be the type of person who would cheat but then again...I've only known her 4 or 5 months and have been serious friends 2 or 3 months so I wouldn't say I know her TOO well.  Sorry for the rambling post.  sorta drunk...

Give me the gist of the text in a nutshell
<bot>: Falling for co-worker who might already have a possible boyfriend.  Hard to cut all contact since we work together.  What to do?