Cheer him up?

Hey, ladies. My boyfriend has been pretty depressed lately. See, he's really into going to the gym, and working out and all that. Last week he tore two tendons in his upper back and has been totally out for the count. His job is also a lot of manual labor, and they're having him basically do sedentary work. He's been so down lately, and complaining that he's gonna get fat. I've been trying to cheer him up as best as I can, but we live an hour away, and he doesn't want to hang out or anything until he's in a better mental state.

Anyone have any ideas for what I can do to try to lift his spirits?

We haven't seen each other in like 3 weeks, and I really miss him.