I overheard two very outgoing co-workers once, where one asked the other if he was having his holiday party.

"It was last weekend", he said.

"Oh, I didn't get an invite"

"That's because you never come"

She looked shocked, I think she genuinely didn't know what to say. After an awkward silence she said, "but I liked to be invited"

"I'll happily invite you next year if you promise to come"

She smiled politely and walked away.

It was memorable to me because it was such a foreign interaction on both sides from my perspective.

It's probably just ego on the one side. That person likes to be invited to feel like they are the more valuable person in the relationship. If I were the other person I would make sure that invitation is never extended.