1) Of course. I’ve known quite a few over the years. We called them fillyfoolers back in Lower Canterlot; that’s what they called themselves too. But that seems to hold some kind of derogatory weight in Ponyville.
Even Bon-Bon did the first night we lived together, but I made sure everything was straightened out before we went to bed in our separate rooms.
2) The fact that he’s frenzied makes anything he says irrelevant. He could say “I’m gonna give you a million bits!” and I’d still be forced to defend myself. Though I suppose the technical answer from my perspective would be, “What?” or “What does that mean?”
I’m gonna guess and figure you want me to say, “But doctor, wouldn’t that cause a parabolic destabilization of the fission singularity?”
3) Maybe you should be more specific. I had my first coltfriend at a very young age.