We like each other but she's in a long term relationship
We started as friends at work. She began visiting me out of her department and people were noticing her liking me. I didn't feel the same until she added me to Facebook and started messaging me. After I started falling for her, she got her boyfriend a job with us, I was unaware she was in a relationship until he started. Anyway her and I talk for nearly 30 minutes at work sometimes more throughout the day. We have expressed our mutual feelings for each other and her basically telling me her relationship is done and I need to give her a reason but I told her I'm not going to steal you from him because the same thing happened to myself. Anyway, I'm becoming to realise she's not leaving him and its agitating me that I want her. What am I supposed to do?