Don't let someone who did you wrong make you think there's something wrong with you. Don't devalue yourself because they didn't value you. Know your worth. If you have a couple solid people in your life you can trust, you're golden.
When the milk is splattered all over the floor, and those little eyes are looking at you for a reaction, remember what really matters. It takes 5 minutes to clean up spilled milk. It takes much longer to clean up a broken spirit.