Im going bankrupt and need help on this question?

im going to go bankrupt i am not living in the house that i am going bankrupt any more and i am living with a new partner now, my ex wife still lives in the house so i know that the house will get repossessed but what i need help on is that my partner has a mortgaged house and me going bankrupt at her address will this affect her in any way we are claiming child tax credits together so we are classed as a couple or can i use my old address to go bankrupt