<human>: Could you distill the essence of the text into 1-3 sentences?

Just looking to get this off my chest and get some advice. M[23] about to graduate college had a FWB situation going with this F[21] sophomore who transferred here over a year ago. Same circle of friends, known her for over a year and initiated the FWB thing 4 months ago. Exclusive FWB from the start and neither was really actively looking for a real romantic relationship outside of our arrangement. I'm graduating in 1.5 months and now is not the time to get tied down in a romantic relationship. We would go on trips together and spend a lot of time in each other's beds multiple times a week. Great sex and openness within the relationship. At no point did either of us develop romantic feelings, but the physical aspect brought us much closer emotionally than we probably would have been otherwise.

Out of the blue she gets a message randomly from a guy she was really into that previously graduated and lost touch with and they decide to have dinner. Long story short within a week we have to stop our thing and they're dating long distance, but he's completely inexperienced so she thinks things will progress very slowly.

It's been a bit over a week now and we're seeing each other a lot and comforting each other when we are upset about the whole situation; (long hugs, rubbing each other's backs, hanging out alone and discussing things). We both seem to really be struggling with this, me a bit more than her since she has someone new to project it onto in a sense.  A part of me really doesn't want to lose her friendship because of how close we got and she's a really nice girl, but there's a side that wishes we still had our thing going that is hurt by her choice. It's difficult to have her around at all because it makes me hurt, but I don't want to lose what developed into a great friendship. I'm just unsure how much of that friendship may diminish now that the physical side that helped it grow is no longer present. With only 1.5 months left, will most of that time be spend "trying to get back to just friends" ? Should it?

Thoughts? Similar Experiences? Advice?
<bot>: FWB broke it off after 4 months when we had gotten quite close and now unsure how friendship will or can progress.