Girls, Am I in the wrong for this?

So there's this girl at work, We've only knew each other for about 2 months, We talk every day but there's one downside to it... She's in a relationship already but she's in a continuous argument with her boyfriend and overall it just seems like it's going downhill. I just can't stop thinking about her and I know saying this on the Internet is stupid but I just don't know what "to do"... Like I've never felt this way towards another girl before but the one person I do catch feelings for is already taken...
Girls, Am I in the wrong for this?
Post Opinion