I'm in a relationship with a girl whose ex (also female) is talking of suing over money which the ex's mother loaned them while they were together. They made a verbal agreement when separating that they would each pay half and started making payments into the mother's bank account. My girlfriend believed she had paid what she needed to because the money loaned to them mostly paid for the ex's stuff, and so asked for an itemised list of exactly what her payments were paying off. When the ex(and her mother) failed to provide the list, my girlfriend stopped her payments. They have been broken up for almost 6 years and the last payment my girlfriend made was almost 4 years ago. Does the ex have a leg to stand on?