Well... if I may add my impression of the story... For me the main shock came with the first paragraphs. I couldn't grasp how a man, an intelligent one, in a loving relationship with family and kids, could have got on drugs. I need to rationally understand the story I'm reading, even if there are emotions and all (and I think I can be pretty emotional about some stories...) to really accept the story my brain has to confirm "yes, that's possible". So my major objection against that story was "Why it had to be Jeff to be written as a crackhead?" There was plenty of secondary characters to write off, why it had to be one of THE couple? Once I got over the fact that Jeff became just by a turn of a page (and sort of in five years) a heavy drug addict, it was obvious for me that he's going to end up badly. In fact, making Jeff a drug addict was such an impulse for me that I came out from being an anonymous reader and asked at your yahoo group why did you do that! In general, 1968 didn't have such bad impact on me - mainly because I knew what's going to happen (I got it in the answers to my question) and I could prepare myself for that and I loosened my attachment to that character, to be prepared to let him go. In other cases however I'm a similar case like Adam, I get too attached to the characters and don't want them hurt (or dead :wacko:)
Side note: so "Robbie has grown on you", huh? So why are you making him such a whiner in the last stories - and mainly in the Box, huh?! You're mean to him!
To polemicize with Sharon's point: JP is the bad guy here because you just don't throw the member of your family overboard. This is of course only my opinion and of course I may be naive because I didn't go through any such period in my life (lucky me!) but you just don't do that. Not in 1960s. I'm not defending Jeff and what he did to JP in Paris, I'm aware of the fact that drugs change people. To get to my objection to the story, JP's main fault was he let Jeff get to the state where he couldn't be helped any more. We of course can argue what else JP could/might/should have done, but I don't want to divert this discussion, moreover we really don't know what JP did during those years 1966-8 when Jeff started to experiment with drugs if I remember correctly.
And because I like to oppose myself (it has indisputable advantages - e.g. I can have arguments with myself... ) I admit that people divorce, people say "that's enough, go away", hell people even kill their partners if they become inconvenient... so in fact, I really don't know. I can't stand up to defend JP for what he did or better said for what he didn't do... but on the other hand to blame ONLY him... that would be unjust as well.
Edit: And while I was typing this long exposé (I really didn't mean it to be that long), Adam has already answered to what Sharon's saying and sort of expressed in better way my "You don't throw a member of your family overboard." You wouldn'd do it to your son,why do it to his father?