That was terrible from every perspective! There is no way that Rob would have risked a knife while Helen is carrying the knobspawn and Helen would not have risked the inevitable row while Henry was in the house. I was hoping that she would use Kirsty's phone to call WA and that with their and Kirsty's help she would leave for a safe place.
I did like the tuna bake bit.
There will now be a very EE trial in which Arseula and Pat will testify that Helen is mad and Hellin's only witnesses are Kirsty, Jess and crucially Henry. It will also be used as device for revelation (once the Ambridge amnesia has lifted) of Rob's generally evility beginning with theft of the curtain fund. The local gossips will proclaim that they knew all along that he was a bad egg.
Perhaps worse, there will be an excruciating "comic relief" storyline involving Bert and the fairbrethren.
Can't wait to have the old "Archers" back