Uncovering a loved one's disappointing behaviour will be devastating. You can't stand being played for a fool. Resist the temptation to lash out. Instead, leave the situation as quickly and quietly as possible. At that point, you'll be able to heal. Pouring your energy into a creative project will give you a chance to process this dismaying situation. If you've discovered money has been stolen from you, notify the authorities. They'll soon get to the bottom of things and put them right.