great! he's been an emt for roughly 3 years now and can be very chatty so he could have been the one to approach her? depending on how long she's worked there for, we can either say the fling happened recently or early on? or we could say it has been on/off for a few years. he's not the type to openly say he doesn't want anything serious so most women assume he's in it for the long haul but he just thinks unless he actually says let's be exclusive that they know he isn't prepared to get down on one knee etc so a lot of the flings end awkwardly