How do you get a STBX to admit her affair when she is in denial?

I really need some closure as things are getting close to "the end" and she has continued to be more worried about her reputation with people and friends than being honest with me. I have had suspiciion about this from the start and I know she will claim she didn't get "engaged" physically until she filed in January.

I plan to move out by end of July so I want closure!!!

I read tons of stories here as where the cheater moves out as this is the right thing to do but I could not prove anything until in the last few months. I wish I stuck to my guns and pushed her out but did what was the right things for my D7. She did not.... this is where the anger/resentment creeps in and is hard to move on which I want to do and need to do.


_________________________
Me-48
Spouse-WAW 52
Married for 10 years
D7
ILYBNILWY 7/15
Suspect EA/PA 12/15 No confirmation/denial
She files 1/2016
Working towards the Big D ...still in progress....