Yeah I really don't know what kind of happy ending Jesse can have at this point. Both times he got sober and tried to stay out of the meth business in seasons 2 and 5, it sounds cruel, but really Walt is right about his life being kind of aimless without it and not knowing what to do with himself. Maybe if he had met Jane at a different point in his life, when he wasn't dealing meth, they could have found happiness together then? Andrea and Brock have always just seemed like such an artificial idea of happiness for me idk