My ex-wife just messaged me asking to lend her some money. When I've divorced her 4 years ago she had nearly 100k in cash.

The same woman who was hiding an affair for 3 years, tried to con me into co-signing a business loan (300k) to buy her a partnership in successful business and during the divorce tried to take half of my savings and pensions. She also prevented me from having any contact with my son for nearly 6 months during that time.