I'm with merlot and chelsea, I'd hoped Ethan and Jack would look like each other. Yes, I'm sure a Rob melt down sometime over the festive period is inevitable. One thing that occurred to me, is that Jess may be the target, rather than Helen or the children.
Rob was with Bruce, wasn't he, when Rob hurled verbal abuse at Jess. His NPD along with the chronic stress he's been under will be fuelling his belief that he's been done down and Jess could well be the catalyst. If she hadn't come forward to give evidence at Helen's trial, things could have been very different for Rob. (dum de dum de dum de dum)