Sounds like myself. Divorced my wife just over two years ago due to outside influences we couldn't control, feel like I'm still in pieces - we didn't fall out of love, life just got in the way and took us in very different directions.

I'm doing stupid shit like wasting my time on video games, not eating correctly or at all, smoking weed daily and going on weekend benders randomly (sometimes it's two weekends in a row, sometimes not at all for a few months, the drugs of choice alternate). I hate how I've let myself go, I feel like such a huge piece of shit. My social circle is a mix of straight edge people and drug/alcohol abusers, and my family is scattered across the country. I honestly feel like I can't get any help with getting my life back on track, everyone around me has their own issues to deal with and I know I shouldn't be doing the things I have been to begin with. I've considered doing rehab, but I'm not taking any specific substance often enough for it to make sense - I have no physical addictions apart from cigarettes.

The part that hurts the most is I know very well what I'm doing, and I'd love to say I care but obviously I don't because I haven't changed yet. I really want to sort my life out, I just feel like doing it alone is nearly impossible right now. I don't even know where to start. The straight edge group of friends and family don't know the extent of abuse, I hide it well. I just don't want anyone to worry about me when they have their own lives to deal with, in just afraid that at this rate I won't be around to deal with my own. For once in my life I can say with 100% certainty that I feel absolutely alone, even when I'm with friends and family.

I guess what I'm trying to say, is as a friend it might be as simple as asking him what's up and actually genuinely giving a shit - if you want to help, make sure you have the time and commitment to follow through with the help you offer. The hardest part of losing yourself is having no help to pick the pieces back up. Therapy can only do so much.