My girlfriends ex boyfriend of 2 years ago has suddenly started e-mailing her seding her messages asking her to get back with him and demanding sex with her. She is not ineterested in him because she is completely in love with me and i trust her unconditionally. the problem is as much as i try and support her through this he still continues to send her messages and is saying he wants to visit her and it is upsetting her. How can i stop him from upsetting her? Should i go and beat him up?