Keeping this very short.
BF is currently undergoing therapy for cancer and has a 3 year old daughter with her DH. Her DH has a daughter (17) with an ExP. ExP left DH when SD was 2. He was devastated and did everything to keep in contact with his daughter. They were never married. She took a brand new BMW when she left.
BF's MIL is the living descendant of Machiavelli. MIL and ExP have become best mates since BF met DH.
DH's business has gone down the drain and maintenance is paid by BF.
ExP is now demanding more money. BF rang me in tears on Fri asking for some money for them to last the weekend.
She didn't have enough money to pay to get to the hospital for the therapy.
Oh, BF's mum also has cancer (another kind), BF is breaking down.
BF and DH met when SD was 9.
I can't bear seeing her so ill and so upset. What sort of women hound another woman, literally, to death?
Constructive and positive advice please, how can I physically help her?