Don't Take That Feelings For Granted
If you succeed in cheating someone, don't think that the person is a fool; Realize that the person treated you much, more than you deserved.
Good relationship doesn't need Promises, Terms and Conditions, it only needs a SHE who can trust, and a HE who can be Loyal.
The right person will always be afraid to hurt your feelings, because your happiness triggers his confidence in you.