He is playing games. I suspect.
I mean, before your last post I would have agreed with the others, that he was simply injured and in my eyes if I were on crutches and in pain I'd not be feeling like going on a date where let's face it you want to appear your best, and being able to 'strut' [teeheehee] would be a plus. As a male he is probably a little ashamed of his injury. God knows why.
But not contacting you after 7 days is a game. He's on crutches, not in a coma.