Of, course I'm helping - u need to be prepared.
Once you're ok with her having another guy, you'll be fine.
yes, i agree. you're pretty much over her once you're ok with that. and it will happen sooner or later, so just take all the **** in one go rather than spreading it out over weeks/months. its hard, i know, im dealing with the same thing, but it gets better ever day.
good luck man.
...and remember, there's always people on this forum with good advice if you need any help.