.. I'm capable of spending hours alone but feel most energized when interacting with others?
If a deaf INFP falls in the forest and no one is around to hear it, does it make a sound?
Well, according to the definitions, extraverts get their energy from interactions with others. However, I don't see you as being an extravert. Everybody does both introversion and extraversion.
5w6 or 9w1 sp/so/sx, I think
Yeah, that's the MBTI definition of an extravert. The needy puppy types would STEREOTYPICALLY be ESFx. (I said, based on stereotypes...and perhaps personal observation.)
3w4-9w1-?w6 (nearly headless nick)