You don't need evidence because she is shacked up with this rat. That is all you have to say.

Do you plan on exposing Saturday after your daughters party? The reason you didn't have people come there on Tuesday is because apparently you did not plan a party on your daughters birthday for some unfathomable reason. Did you invite people to come on that day? Plan a party?

"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena.." Theodore Roosevelt

Exposure 101