<human>: I am infatuated with a woman (late 20's) at work who has recently moved into my department. I didn't know her previously. She's my type in every way and each new thing I learn about her makes me more interested.

After knowing each other for only about a week, she singled me out and asked me to hang out. We've had enough small talk at work for me to know that she has a boyfriend. In fact, she brings him up frequently. She hasn't asked any other guys at work to hang out, single or taken, and every time we bump into each other for the first time in the day she says "Hiiiiiii!" and does his cute head nod/twist thing that seems very flirtatious to me. She makes direct eye contact with me when we speak, laughs a lot, and touches her neck or thighs. She also mentions that my behaviors or comments on things are cute. This has happened about five times in the two or three weeks we've known each other. We work close enough that I hear her interactions with other men and I've never heard her say something they do is cute. 

I'm confused because she constantly mentions her boyfriend and the things they do together, and has offered to try to set me up with one of her friends. She even mentioned once that she wouldn't mind if he asked her to marry him. Some of her behaviors say, "I'm interested in you!" and others say that she wants to point out that she's friendly, but has a boyfriend. 

Ladies, please help me understand her behavior.

Summarize the given text in a few sentences.
<bot>: New coworker is flirtatious but mentions her boyfriend constantly. Would love to ask her out, but don't have a clue about her real desires.