Who did you sympathise with more? (SPOILERS)
I can see it from both points of view and both parents were to blame but I think the fault mainly lies with Bri.
Sheila was neglecting her husband and didn't seem to realise that doing so was damaging their marriage.
Bri's concern and frustration is totally understandable but he NEVER talks to his wife about it.
For him to just walk out on his family because Sheila suggested leaving Jo in care for only a month a year and to not even raise an objection against the idea was unforgivable.