It's never what you think it means, but it's okay to pretend! :D
I Have You
"Hey, nosy!" snapped John as Sherlock led him down the hall and to his room, much to the chagrin of a startled Mary. "The hell, Sherlock? You just…barged in and interrupted. You can't do that."
"I can try to stop you from becoming infatuated with her."
John stilled. "You're joking. Tell me you're kidding."
"Do you find it amusing?"
"I find it obnoxious, actually. I'm not infatuated. And it would be nice if you didn't hinder my friend-making."
"Don't fall for my cousin," said Sherlock, unsure as to why he dreaded that thought.
"Why would I, Sherlock? I have you."
Prompt was from Paralelsky and it was: infatuated