Once you stay with someone who has cheated, and begged you to take them back, and promised up one wall and down the other NEVER to do it again. Has cried and told you how sorry they are and how important you are to them, and what a stupid mistake they made....it's simple. NEVER beleive their lying ass again, and always be prepared for it to happen again. Guard your heart, and when they take one step over the line leave them forever without looking back. Forgiveness doesn't have to be stupid!