I'd create a spreadsheet with the bills and then email it to him asking for his half. Talking face to face brings up negative emotions. After my D, I plan on mostly dealing with financial stuff by email because money talk was one of the major reasons we didn't get along.
Me: 47, Ds 17-13, D final 6-11 http://tinyurl.com/yk4e2tz http://tiny.cc/thread2 http://tinyurl.com/ydtphqu http://tinyurl.com/thread4 http://tinyurl.com/3sm78k6 http://tinyurl.com/thread6