Her pastor husband don marry,even born pikin join and she nor know

I got married few years ago to a pastor, a gentleman,loving and caring husband. When he came to ask my hand in marriage, my family was very supportive of us getting married because of his lovable personality. He lives in the UK, so after the wedding, he arranged all the travel documents for me to join him there. When I got to the UK, I gained admission to study a four year course. I am in my 2nd year at the moment. Some months ago, a woman who claimed to be his former wife called our home. She threatened me for taking her position. I was confused and could not believe her. After the call, I confronted him with the story and he eventually opened up to me.

He claimed to have two kids with the woman but that his nine year old marriage with her ended because she left him. However, he is telling me that he doesn't want her again. That he is done with their marriage. I am at cross roads at the moment because he is a pastor of a large congregation and everyone believes we are having the best of marriage, yet I am dying in silence. I cannot tell my parents because they will be devastated. What will I do? Should I leave him? I am confused. HELP!!!