Let's solve this by reasoning 
Option A. Pretend you never read her emails and live on normally
- the emails will always be in the back of your mind
- you will be insane forever
- you will still have a relationship with her
Option B. Bring it up and talk
- you will be relieved
- you will be doing what's best for yourself (probably)
- it will be rough before you both break it off
- ends in no relationship and no butt secks for you
Option A. Pretend you never read her emails and live on normally
- the emails will always be in the back of your mind
- you will be insane forever
- you will still have a relationship with her
Option B. Bring it up and talk
- you will be relieved
- you will be doing what's best for yourself (probably)
- it will be rough before you both break it off
- ends in no relationship and no butt secks for you
