Dear Fiona,
For the past three years, I have been living with my partner who I really love. He was going through a messy divorce when we met, and although it was finalised two-and-half years ago, the ramifications are still going on. His wife has custody of their three children and uses them to manipulate him.
I am also divorced, but that was some years before I met him and I have a good relationship with my ex-husband (although we don't have any children, which makes things easier). Our problem is that my partner's ex-wife is making his life - and so also mine - a misery. She walks all over him and is forever threatening to stop him from seeing his children if he doesn't do what she wants.