Someone you randomly added arranged the game, then un-friended you so you couldn't get them back at a bad time for their team
This is the reason I don't add anyone I don't know anymore.
Friendlies should be a mutual thing. Both parties should have the option to play, or cancel. Like When I play my cousin, who is level 7, and I'm level 6 - we agreed a time on Facebook to have a match, and both of use were there on time for it, to watch and make changes. I won 1-0 btw![]()