Sid, the one you didn't lose interest which had good sex? I bet there's little things like there is when you find a guy is a "sloppy" kisser :-) or some other personal behavior you just don't like. Maybe the sex isn't good enough in some way or he does something that's sub-noticeable that you don't like? It's beginning to sound like you just haven't found the "right" guy other than the one for whom you weren't quite the "right" gal? I would trust your gut and not try to "recreate" if something gets lost but just decide how "important" the sexual aspect is and/or what might be the "thing(s)" you don't like sexually and fix them?