First wife requesting a divorce

My first wife has said to me that if I go abroad to meet my second wife then I must give her (my first wife) divorce first. She is already living in a separate room from mine. She has had many outbursts before. The latest outburst came when she saw my passport. I have pleaded with and asked her in every way to be patient for the sake of the kids, but it seems that she does not see anyone besides herself. I have talked to her father but he has given up also and there is no one further I can ask to interfere and bring some kind of reconciliation between us. I do not want to divorce anyone.