He asked for a break, but writes me every day

[IanSaysHi]

It sounds like he's trying to find himself at the moment and it doesn't come across that he's in the right place for a relationship at this point in time. I'd say the messages he's sending are a reflection that people who are off trying to work out want they want from life still need some kind of stabilising element in their lives, which is where knowing you're there ready to reply to his messages comes in. I think for now you may just have to accept it as a good friendship and once he's ready to settle down then maybe you can pursue a relationship again. But if he doesn't want a relationship right now, don't let it leave you indefinitely hanging for him, always leave yourself open to new possibilities.