<human>: We became best friends in college, but never dated. We were very close friends, but after graduation last year, when we both started to work, things have changed. We didn't have much time for each other, we only saw each other once or twice in a month, though we talked a lot on the phone, facebook etc..

In february she told me that she wouldn't be available on facebook, because she spends the whole day in front of the computer in the office and she doesn't want to do that at home too, but we can communicate via e-mails during the day.

Last week she could finally find some time for me, so we met, and she told me that she had been dating a coworker since february, but she didn't want to told me because she knew that I don't like that guy, and I would be against their relationship. 

She told me how happy they are, never loved anyone so much, showed me pictures of them, and I was sitting there like an idiot, it was awful, I realized, I should have dated her, I should have asked her out back in college. I never thought she would end up with someone else, and never thought that it would be such a terrible feeling. 

Now I don't know what to do. I don't want to lose her, but it kills me that she is with somebody else, and I am not the most important guy in her life, and she calls someone else if she has a problem and so on. But I think she would be very sad if I broke all contact with her.

Can you give me a shortened version of the text?
<bot>: I am in love with my best friend, who dates an other guy. I don't know what to do. Cut off contact with her, or just wait until I fall out of her.