Don't trust me around your man.
My "best friend" started dating this cute boy. I became friends with him. They dated for about 1 year with the exception of a few break-up periods. During one of their break-ups (summer) I dated him. She never found out. After awhile, she started to become vicious for no reason. (Many told me it was jealousy.) I got sick of it, and hooked up with her ex again. No regrets. I honestly don't care. She never found out, and hopefully never will.