I learned the hard way that I cannot always count on others to respect my feelings, even if I respect theirs. Being a good person doesn't guarantee that others will be good people. You only have control over yourself and how you choose to be as a person.
People do lie, and cheat, and stab you in the back. There will be people who use you, and don't love you even though they say they do. But you can't let that stop you from living. Because there are people out there who do love you, and would