You and Alec have been dating in secret for a LONG time. Like...3 years. You two decided not to tell anyone because of your occupation.

You lean against the wall as Alec speaks with Ellie. She had unexpectedly dropped by to talk to Alec about the case. Alec has his hand over your mouth, but from Ellie's point of view, it just appears that he is leaning against the door frame.