Sherlock's face says it all

 (Sherlock meta by interstellar-wanderer)

His face in the last gifs killed me.

Molly’s confession is so sincere, and has totally disarmed him. It is a cathartic moment for him, that is when he begins to lose all control over himself and his wall begin to collapse.

Is not only the horror of knowing that Molly is in danger and if she does not do what he says to her, she will die in front of his eyes, she has just confessed that she loves him wholeheartedly and he thinks that he will see her die in minutes.

He is going to lose a person who loves him completely and unconditionally, a person who has always been there for him, and it’s at that moment, ladies and gentlemen that Sherlock realizes that he loves her too, that he has always loved her. Because the mere thought of losing her, both physically and emotionally, shocks him in such a way that he smashed the coffin with his bare hands.

The coffin that was meant to bury her, a person who loved him completely, and the name of the coffin is not added by the person who dies, but by the people who love them. And the word that was written on the coffin was “I Love You”. Because if she had died, not only would he have been burying Molly Hooper, pathologist and friend, he would also have been burying the love that he had so far refused to feel.

And he can not resist the physical reminder of that possibility, seated in the middle of a cold room, that so cruelly has dissected his heart, leaving an exposed core of feelings indescribable to him.

A reminder of that that spark of thriving emotions.

That realization that had raced through his consciousness.

In just a few seconds all those emotions all that love.

Would have died with her