House, there is no mosquito. This is all about Cuddy.
House: I am not imagining things.
Wilson: House, you're a drug addict. You're always imagining things. You got bitten the night you kissed her.
Your itching always gets worse when you think about her. You need to address this.
House: She's my boss.
Wilson: No, you're not afraid of authority. You're afraid she actually is right for you.
You're afraid to take a chance because it's too big a chance. If it doesn't work with her, then maybe there’s no one out there.
(5x07 The Itch)