I had a couple of players beat me in tight games, pleasant conversation, no animosity, no stall tactics, nothing objectionable. I send a trophy and a friend request and request a rematch. No response to any of this. Tell me this is not rude.
Thanks for the trophy would be good enough. Nobody has to be your friend or accept rematch, some people just want to play chess quietly, you know - get better, prepare to OTB games, etc. Do you think all GMs are friends? Get facebook for friends.
Sounds like SMB to me!