[Rustic bauble]

We can only speculate..but It seems Sian has taken it upon herself to do most of the cooking/cleaning. Sian's insinuated it and Lewis/Cameron's have mentioned it. I can only think she's taken on the motherly role that maybe Zoe would have liked.
Also..Sian doesn't get involved in anything..she seems cold and emotionless and sits there stony faced..you never see any interaction between either of them. Maybe Zoe has tried...maybe she hasn't.
That caption where Zoe and Cian are crying in the bathroom and Sian's emotionless face speaks volumes....Sian seems to like Isabella but she never offered her a shoulder to cry on last night...
She's a funny one. I think Sian is a mans woman and Zoe too and Sian gets more attention from the men.
It all equates to jealousy..