Help...my friend................

has this problem...she has a boyfriend and her ex won't leave her alone...she even told him straightforward she's not his girlfriend anymore. she's tottaly depressed about it. i called her and we were talkin and he called so she talked 2 him 4 a little whila and said he wanted 2 come over and she told him no a million times...it's tottaly stressing her out...and she's still wondering what she should do. she really needs help, so i decided 2 help her out...anyone got any suggesstions 4 wat she shud do?