This is the answer to the "19,000 Prompts, 500 Words, One Week" Challenge.
Road Signs
It was only when the door of the house that he had grudgingly called 'home' for the last sixteen years fell shut behind him with stark finality, when the full extend of what he had just done settled on Sirius shoulders – heavy like a wet blanket.
It was then that he realized with starting clarity that he had absolutely no idea what he was doing or where he was doing. It was a bit like standing at a crossroad in front of a road sign, one side saying 'this way up', the other 'this way down'. The only unfortunate thing about it was that the arrows showing which direction was which were no longer readable.
Still as Sirius started walking he knew that wherever this might leave him, he knew that he would never have forgiven him for making a different choice.