Well, personally, it's not the canon het that bothers me. It's the retconning, the plotholes, the OOCness (especially on Elle's part), and how contrived it all was. I wouldn't have had as much of a problem with it if had been Eden instead of Elle - because the personality of the girl that we saw in that episode resembled Eden's much, much more than it did Elle's - but that would have brought along its own set of plotholes as well. I'm just irritated that the writers seem to be doing everything in their power to make poor, woobie Gabriel completely blameless, and sacrificing the timelines and characterizations they'd previously established in order to do that.