<human>: Can you give me a shortened version of the text?

So I met this is girl in March, she goes to my school and we both are in the Ph.D. program in the same department. She is 25 and very friendly and I am 23 . We spend a decent amount of time together, go out drinking, watch movies and go for dinner,etc. However, she has a BF not in the States. He is a doctor who is going to do his residency (may be even in US). She has gone to visit him back home and i just feel sad and lonely. I am so madly in love that i would do anything for her and dont want anyone else in my life. 

Now, I have been told that she is not prettiest or the most humble, etc but neither am I. She has been gone for 2 days and I am feeling horrible, like seconds feels like an eternity in this hell ( Hell because I am Ph.d student and working on a publication ). Now i am might not be the best out there but I know that for fact that I can provide for her and love her like no other. I havent asked if she feels for me the same way simply because I don't want to ruin our friendship. We have had fights that we spent too much time together and she doesnt have time for herself considering she has a bf too and i am not him. I have backed off a lot and she accepts it too and we have been having happy times, enjoying summer doing our regular thinks like drinking, movies, dinner and etc. 

She has talked about marrying this guy and she is pretty serious with him. It might be that she is going all in with this relationship and next one if there is any. Now I dont know what to do : Should I approach her and tell her how I feel or Should I sit back and if she breaks up or should I get over or ... ? Please tell me how as well.
<bot>: I met this girl, become best of friends, spend time with her almost everyday and madly in love with her but she has bf. :(