Sherlock in his way to greet Molly and her fiance

Sherlock*smiling to Molly*: Hello little -I'm-totally-over-you-and-have-better-things-to do-than-eating-chips-with-you-Hooper …

Sherlock*moving his sight to the tall shade standing next to Molly*: Who replaced me...

Sherlock*Getting hit by the lousily reflection of himself standing in front of him*: with me!

Sherlock*opening his mouth dumbfounded*: Mental note, ask parents for a lost twin

Sherlock*a disco ball starts to appear from the ceiling of the mind palace*: another mental note, she's not over me

Sherlock*music starts to play*: I mean ... it's like looking to a mirror

Sherlock*looking to John, connecting telepathically while confetti start to fall from everywhere*: JAWWN...

John*intense gaze, connecting telepathically back*: OHHH I dare you to say a word I dare you twice

Sherlock*erasing all the celebration signs from the mind palace, gaining his cool back*: Alright! be cool … this is not the right time to have a mental party … save it to the break up

Sherlock*offering his hand for the nice man with a tight smile*: Hello -Molly's-temporarily-fiance, nice to meet you … hope you enjoy the short time you will be around us … sorry in advance for screwing up your engagement

Sherlock*getting out of the apartment, half amused, half annoyed*: Seems like there's nothing to worry about

Few months later:

Molly*smiling widely*: And we're having quiet a lot of sex

Sherlock*dumbfounded*: Alright, maybe I underestimated the situation