i just read what she wrote you.. wow.. "im a good catch"... what the h3ll?
She probably is really messed up.. maybe she does feel like she hasn't experienced what you have.. sometimes I feel that way. I only dated 2 other people (not long, not real relationships) before I got married. I hope that it won't ever affect my marriage.. and if something like that happens, then you should be mature about it. Not go cheat and then use it as an excuse.
I hope you've decided to divorce her and that you'll go through with it.
good luck
__________________
You can't always get what you want
But if you try sometimes
Well you just might find
You get what you need

