How do i stop the shake feeling after a break up?

it has been three months. but i feel bad i feel depressed and down.when we first broke up my ex gfs mom told me off on things only my ex i knew. i wasn't abusive to my ex in any way. well this made me go into a depression. after that i found a site where people going threw the same thing help each other out, well my ex found it told her mom and her mom called me ten times in two days to tell me off, then she answered one of my questions on a fake yahoo account i have telling me off. after that i send her an angry email and my ex calls to tell me off getting pissed of because of the site. well she tells me she never bad mouthed me and that she always def-fended me,well now i feel bad about using a site for healing and i get this shaky feeling