I read that it says in the Radio Times that Martin gains feelings for Chloe when he meets her, and him and Sonia are left with the decision to walk away or to fight for her.
The week after's spoilers don't mention Chloe at all, so I'm not sure whether they just leave it or if the writers are keeping it quiet. I think Sonia's feelings for her daughter are too strong for her to walk away permanently, she needs to know whether she is being well looked after.