My wife cheated

My wife cheated with another man after 20 years of relationship, with two kids 10years and 11years olds sexe in my matrimonial home with another man for a very long periods of time till the day caught up with them , All this started when she start denied sexe with me and complaining every time I ask her.
She will bring her medical condition saying her sexual feelings has drop down and is not her fault she can't control her body every time I make love to her she feels la very painful inside , later she told me now the doctor has discovered a fibroid.
I assisted her with the money to do some natural treatment she choose because the fibroids were very small and located in her kidney area .
But every time I go to work in the morning she will bring her boyfriend in our house to stay and have, till one I started suspecting her behaviour and way talking about sexe and always happy at home when I came work stay late night and only complain when I ask us to have intimacy. So this day I decided to leave my phone at home to record what happened behind me every day suddenly on this day the boyfriend came home and everything were on audio to the phone and sexual scene I decided to confronted her to talk man to Lady conversation , I the ask her this question is anything she wants to tell me about that I am not aware of it, she said no I ask again same thing same answer, I then mentioned the name of the guy in the audio she was shocked and panicking.
Telling is not me and don't know anyone with that name in my life .
I said OK , I let it go and the seconds night and I ask her again she says that all the audio is her voice except the sexe part, she says you edited the audio that's not my voice I say I know for 25years and you know me too I know your voice you know your voice, just confess and you and I if is anything we can fixe let fixe. Same answer not me .
On third night I ask again , by saying I really want to believe what you are telling me but this audio , telling me something.
She now was completely different from her behaviour sweating and going to the toilet every second drinking water then she said go to work tomorrow we will talk, I said please let finish with problem tonight, she I am afraid of you the way you are now maybe you will do something crazy ,I reassure her that nothing will happen if she confess by telling me the truth again she look at me and said is not me and then says can you stop lieing and confess the next I know ,police were knocking our door and ask to leave the house.
Since then it been two weeks.