Not establishing a rapport
I agree with Chicafan. Some girls seem like not wanting to establish any rapport with you. And probably those are the girls who want to go to a room right away, finish it in 5 minutes, and move on to the next target. They are either just stupid or too arrogant, IMHO. In either case, I don't think you can get a GFE with those girls. So no broken heart there.
I personally did not have any girl who acted snotty after a hot session. Ony the WOM and WOT acted that way after a session with them. But your experience might be different from mine.