You keep your guard up, and let it down when you feel comfortable enuff, and when things seem kosher.
There is nothing wrong with standing your ground.
People that come in to your life, will just have to understand what you have been through. If they are real friends, they will respect the way you need to be. For how ever long you need to be that way. They will do everything in their power, not to give you any evidence in which to doubt them.
Live Simply Love Generously Care Deeply Speak Kindly Leave the rest to God