`` dad 's been in kind of a bad mood for a few weeks , '' jason muttered , bella sighed and fiona laughed for the first time since bella left ( except for when the kids got their boxes from bella , firstly she laughed then because the children had been so happy and secondly because prentice had looked so cross and then he 'd brooded ( more ) for entire days and fiona , for some reason , found that hilarious ) .