Was he behind you for a while? I would have freaked out if there was a guy walking that closely behind me who wouldn’t pass me especially as he was still behind me when I got to my front doorWhen someone walks practically on your heels but will neither pass you by or drop back a bit. Happened to me just now. I stepped aside and released them . There was plenty of room to pass, but anyway.
Some months back I was walking into the estate where I live, I was almost at my own door when I realised there was a guy on my heels. It must have looked so ridiculous to anyone who saw us passing by.
I could almost have carried him on my back, he was so near. Idiot!