But... it was an entire episode dealing with romantic relationships. And I never mentioned a thing about sex. It just seemed that Ponyville has a whole heck of a lot of lesbian couples. And I only even noticed that because I checked to see if that really was Doctor Whooves and Derpy in that scene. It just so happens the same scene had Bon Bon and Lyra, plus about three other lesbian couples.
I know you said nothing about sex. It's just labeling relationships and shipping, regardless of intent, well... it goes places. I've investigated all things pony, and I have seen things I'd rather not.
As far as the episode's theme, well yeah it was about relationships, but there was also a funeral being held, kids playing video games, etc ("This one's too young, this one's too old..."). It was basically a busy day outside, and yes couples were out in full force.
I'm just saying, have your fun with it, but don't overspeculate.
My location is in Wisconsin. Near the Mississippi. Somewhere. >_> PM if anypony wants specifics, but if EQDaily has taught me anything, I need to go to the Cities or Green Bay to find fellows.