Hey Paul,
Sorry to hear that - but you need to develop a friends list of like minded people - or join a country club and get to know the players in the club. Thats a really good way of making friends.
Just picking a game with an-other player, you're asking for trouble.
I have experienced similar - very little mind you. Some players I play against will say - hey, I'm not going to putt out on the last if thats OK with you. No issues at all from me. We have an enjoyable game, and when he leaves on the last pitting green - thats cool. Its only a game after all and it takes all kinds. I just dont get to uptight about it.
Relax, enjoy, and stay cool. :-)
Cheers
Doug