Long Term Friends with Benefits?

[MoonLemon]

So tell me if this is a good idea.

I had a little bit of a summer fling over the last couple of months, and well, it was great! I'm moving out of state for college, and the guy and I have really become good friends! The general agreement of our relationship is that we will be FWB until one of us enters a relationship (obviously will see each other less, or whenever I'm visiting home).

I've heard many people give the advice that you should cut off FWB at three months. I feel a lot more for this guy than a casual hook up... like we care about each other and stay in touch just to say hello. In case you haven't seen my other post, he's 47, so I'm really not worried about the relationship spiraling into some awkward exchange of one person catching feelings for the other. The logistics of that just DO NOT work. Sure, he's a nice guy and almost like a mentor to me, but that wouldn't work. Is it bad I'm going to miss him a lot?

Is it dangerous ground to have bonded with this guy over sex, but to continue doing that for an extended period of time? We've become close as people, too. Is this just an amazing set up for an awkward situation of catching feelings for each other and complicating what could have been a great friendship?