Summarize this article in one sentence.
If you decide to ask her how she feels about you, figure out what you want first. Do you just want to sleep with her one time and never speak again or are you in love with her? If you don’t have genuine feelings for her, it is probably not worth your time or her time to try to pursue her. If you genuinely like her, then it might be worth asking her how she feels about you. Don’t just jump right into asking her how she feels about you. First flirt with her you to show her you are interested. Be yourself and joke around with her. Give her compliments and ask her about herself. Smile when you see her and make eye contact. Try to break the touch barrier with her by finding an excuse to brush against her or touch her arm. Be sincere and not fake. If you feel like you have established a connection with her and feel confident that she might like you back, ask her how she feels. This can be stressful and nerve-racking but worth it to finally have a clear answer. Be confident but also be understanding that this is a delicate situation and you might be putting her in an awkward spot. Even if she has been flirting with you, it does not mean she must not love her boyfriend.  Try saying something like, “I know you have a boyfriend - and I don’t want to get in the way of that - but I just wanted you to know that I have developed feelings for you. I completely understand that you are committed to someone else, but I want you to know that if you weren’t I would want to date you.” Give her plenty of time to think about what you tell her and to navigate her feelings. If she says she is not interested, then she is not interested. Leave her alone and let her be happy with her boyfriend. Continuing to pursue her is rude and disrespectful. Give her however much space she wants or that you need to get over her. If you are both comfortable with it, continue to be her friend.

Summary:
Figure out your intentions. Flirt with her. Bring up that you are interested. Back off if you need to.