I hope someone can help with this and I thank you in advance

I have an estranged partner who I believe is trying to control me by claiming to be suffering from a terminal brain cancer, with a history of being a liar and controlling I obviously dont believe them

Could someone please give their opinion on this:

Claims to have been tested by blood test to search for proteins in blood which indicate cancer.

Then had an MRI scan and confirmed to have had cancer by a private doctor in the uk and europe.

Then told had 6 months to live

It is now 18 months later, said person is of good health and has not been recieving medication.

original symptons were headaches and passing out when we were breaking up

apparantly it's a temporal lobe tumor on the right hand side

Has been leading a normal life.

I am 99.9999% sure it's lies but i just need someones opinion, thank you kindly

Im pretty sure no doctor would get a diagnosis this wrong and would tell someone they had 6 months to live and be wrong with the patient having no symptons or ill health.

thanks

P.S my thoughts are with anyone who is currently suffering or knows someone suffering from cancer.