when they re lie to me .

Sometimes I can stop being  friends with someone, but continue to contact. Sometimes I stop being friends and break off any contacts. All of this may happen if people lie, ignore me, envy me, tell something bad about me behind my back. This may also occur if I feel bored with them, if our values bacame different. In each case I feel pain or disappointment at first, but then I let those people go. I think stop being friends is not the end of the world, it is a part of life, it may even be a sign of my own growth.       

When they betray me or lie to me.

when she or he stop caring or start ignoring me. i hate to be ignored 

When I feel they are not sincere