It's a Long Story... I need advice!!

Lydia
I need advice stat.. 
My boyfriend is the best around. I know I know, everyone says that, but it's true! He always says "let me know when you get there, drive safely" and he bought me a special diffuser and new pillows because I don't sleep well; he knows my coffee order and bring it to school for me before a big test, he cooks for me and always drives me around, opening my door. He brings such a positivity into my life, always smiling and cracking jokes. 
Problem is, winter's a bad time via depression and such, and he's sick of feeling this way. He pushed me away Sunday, saying that he needs a break to focus on him and get better for him, and for me eventually. He told his best friend that he's begging and praying and hoping that I'll be around when he's ready.. and, and I want to be! He's my world and it's only been a week and I miss him terribly. 
He wants me to focus on me while he's gone. Focus on school and go hang out with friends and such. I don't have many friends, and nursing school is HELL... 
I just don't know what to do. How am I supposed to work on myself when all I think about is him? He's my best friend, we had so many dates planed and now, nothing... any advice?