At the start of lasts night's episode I was beginning to think it was his trawler partner who was somehow out to get him. The partner seems a bit too interested in the wife.
But as the episode went on and we got more of the back story from his navy days, I am now wondering if the dubious new boyfriend is somehow related to whoever it was that was killed(?) or whatever it is they are all covering up.
I think the wife is so angry because she doesn't seem to be aware her husband is in some sort of emotional breakdown, so for her he is not only useless but making their life worse than it need to be.
And yes, setting him up to go back into the new boy friend's house seems so obvious, but I think that is meant to show that yet again he is just not functioning in a rational way. Why did he take the medal to begin with?
I did think it was going to turn out that the boy friends house wasn't really his, but one he had spied out as being empty and was using it as part of his new personna. Last week they stood outside and peered in. Very odd.
The daughter does seem very placid, or are we just meant to think she is totally infatuated with the new boyfriend.