Can you block someone on Draw Something mobile?

I deleted a friend from my Draw Something game on my iPhone, I tried to get them back through email invite and username invite. On the user name invite it says 'Player has too many games right now try again later' On the e-mail invite it says 'Player resigned'. What does do those messages mean? We both blocked each other on FB. Could that be it? Does it send them a message letting them know I invited them?

Added (1). What does the 'user resigned' message mean? Did they decline the invite? If they delete you does that message show up when you try to invite them back?

No blocking someone on Facebook would have absolutely no effect on gameplay. It is actually possible to have too many games, so I think it's safe to presume they are full. But why are you trying to play a game with them, if you blocked each other on Facebook?