I wouldn't ask how he is but responding to a hello from him would be just fine IMHO. You don't need to be unfriendly, just not too open to allow him to dump on you.

Keep a healthy distance for you and for him. He needs that time alone to figure out how to BE alone.

T19 M15 S19 XH47 M43
bomb12/4/07
PA5/07
S12/26/07
D final 11/17/08
Back together with no defined R 05/2010
confused....to say the least!!!