Well… I donât. First of all we donât know what happened. We can only guess and try to analyze and thereâs no way for us to figure everything out anyway. Then PM happened in Gillianâs life before Monique happened in Davidâs, XF season 10 premiere aside. So no matter what happened between Gillian and David in the last two years, that wonât explain Portofino nor the shift in her personality. Thereâs still a lot of grey areas in this whole mess.