I'm losing a friend (advice needed)

I feel that for the past few weeks i have been slightly getting out of depression, but there is a problem....

I have only one friend that i can talk to about my depression, i have been writing, meeting up and talking with him almost every day for the last month. And well... i feel like he is getting a little bit tired from me. Doesn't really want to talk to me much and for the past week acts a little bit like an asshole.

What should i do? Should i stop talking with him or what? Because i finally had someone to talk to and i didn't feel as lonely but to think about losing my only friend just brings the negative emotions back..

Things suck man...