OK, Need some wise words to pull me back from getting my hopes up.

Just talked to MIL who said that H was at their house talking to FIL a little while ago and they had a big discussion about his sitch.

H apparently said: "Perhaps I should have tried harder" (i.e. to make things work).

Agonisingly, she did not get any other information from FIL about the context of what was being discussed. That family is so stitched up!