girljohn:no no no no no mary mustn’t die at least not nowi don’t want john to go back to sherlock...

girljohn:

no no no no no mary mustn’t die at least not now

i don’t want john to go back to sherlock and baker st because mary died

i don’t want sherlock to think even for 0.1 seconds that he’s a fill in (bc he would, the tiny son)

i want john to leave from mary before she dies (or before she is discovered to be very bad indeed)

i want john to gently cradle sherlock’s face in his hands and say “i didn’t choose her sherlock; i chose you, and i always would and always will.”

i want sherlock to look at john and see how much that beautiful man loves him 

Yes, John must CHOOSE Sherlock. He can’t return to 221B by default. But if John was the one to shoot/kill Mary, that would be choosing in a very dramatic way.