Help!!! My wife is cheating

I am a pastor and I'm 30 and got married at 26 because of my ministry and ever since then it has been hell. My wife quarrels and hit me at every given opportunity in the office, at home and in church, she has torn so many of my suit and broken TVs, phones and laptops.

When she is angry nobody can control her, she will lock me in the house and leave or lock me out. When she does something wrong and I talk to her about it there will be no peace in the house that day. I have reported her to her people and till now they have not said anything useful, I don't even go home to my family again because everytime we go home, she will fight everybody. I have never for once hit her because it is not right and I swore that the day I touch her it is over.
Initially I thought it was because she was not educated so I sent her back to school yet no change even a day to the wedding I nearly called off the wedding but she and everybody kept begging and I gave in.

We do not have a child yet because I am afraid to have a child with her because of her character. She has been forcing me since to have a child but I refused.
Recently, I found out she was having an affair with her ex who worked for me before leaving Nigeria.

Because she has been behaving suspiciously hiding her phone and leaving the room to take calls. So one day I got her phone while she was having her bath and opened her WhatsApp and saw her chats with the boy. This is a boy she is always comparing me with everytime telling me she is better off with him. I opened the chats and saw her telling the guy she miss him and she wants to sleep with him and he asked her to send him some pictures.

The next day she asked me to take her pictures while she was naked and I asked her why she said nothing. Then later when I Checked her phone I saw the boy telling her to delete the pictures. That one passed because of the troubles and fighting I have moved to my office.

This morning a man called me from Denmark to apologize to me that he did not know my wife was married that he was looking for a wife and met her through social media and she did not tell him that she was married. I told him I forgave him and I have nothing against him. I have called her and asked her now she is denying. I told her that I will forgive her if she tells me the truth but she is still denying.

So I want to hear from others what should I do????