Sunnydale AU: Etiquette 101

So you know that guy who gets a new girlfriend, and suddenly it's like his friends don't exist? Yeah. Cal is trying not to be that guy. Which is why, after not making plans with Tina to avoid having his afternoon sucked away from him when there are things that need doing, he makes time after dinner to head out to the Stark residence for the first time in - a while.

(Sherlock and Tony are a little easier to tear himself away from than Tina is, anyway.)