Jess won't be having an affair.
I've worked it out - there's no-one for her to have an affair with.
Brian's out. Far too much hard won respect for his "magnificent" wife. Kenton, no. David, burnt. Tom, no. Mike
Robert, ditto. Will, no. Ed, no. Neil - would need a characterotomy. As would Roy. They've done vicars...
Poor Jess is facing a lonely few years until she's well established and they bring in a new character just for her. Unless Helen?