She would contest if you filed under adultery because she knows for a fact you do NOT have a third party willing to testify under oath on your behalf that he/she witnessed your W and her boyfriend having sexual intercourse.
Why WOULD she just accept adultery when her counsel will tell her the way the divorce laws in this state are designed it is nearly IMPOSSIBLE for you to prove it?
When you contest you can be contesting the D or contesting the GROUNDS. In this case your W will most probably NOT contest the D but *will* contest the grounds as she will know you don't have what it takes for you to "win" with adultery.
