No contact means no contact, don't give in to the emotions, as so many here have and as has been stated stick with that.
It will forever haunt me that when I decided to break up with my 1st girlfriend I wasn't decisive about it, I begged her to take me back after I broke up since she didn't give a **** about me and I thought foolishly that I could perhaps change things.
In the case of the OP its worse since she just blew him after she cheated on him ( as others stated I would find it unlikely she would break up a solid six year relationship if she wasn't certain of some things ).
OP: With regards to the parents I'd go have a chat with them when you are certain she isn't around. Tell them everything, and tell them you are not interested in her anymore because of the way she treated you.
Then they will either take her side or yours, depends on how much they care about you.
EDIT:
It will forever haunt me that when I decided to break up with my 1st girlfriend I wasn't decisive about it, I begged her to take me back after I broke up since she didn't give a **** about me and I thought foolishly that I could perhaps change things.
In the case of the OP its worse since she just blew him after she cheated on him ( as others stated I would find it unlikely she would break up a solid six year relationship if she wasn't certain of some things ).
OP: With regards to the parents I'd go have a chat with them when you are certain she isn't around. Tell them everything, and tell them you are not interested in her anymore because of the way she treated you.
Then they will either take her side or yours, depends on how much they care about you.
EDIT:
Yes exactly that. Let her beg and grovel for the attention that she wants, some may call it revenge I'd reply that if you do answer her you will suffer a hell lot more, and why give her satisfaction when it was she that decided you weren't worth her precious time.Let her feel the ramifications of her decision.