Offering my support and friendship littleforgetmenot, I don't think you ruin lives. At her age to be thinking the way she does the problems were there well before she met you and everyone is her enemy. Exherting power over others is her tonic and by stealing your boyfriend she has shown her hand with you, there is nothing hidden with her any longer and now you are the one with the power because you know how she behaves. The only further power is why she behaves the way she does. To her sexuality is power, influence is power and at that age it indicates that things have happened to her which have taken her own power away so she has learned to behave this way so that she has the illusion of power. Power is nothing if she ends up alone,

Julia