Prayer Request: I Want To Save My Marriage

My husband has started divorce paperwork and I don’t want it. He moved in with a woman and her six kids that he barely knew. I’m a new Christian (I just got saved last year) but I truly believe if we both put God first we could save our marriage. I love him and we have children together. I know God puts us through tests but I also have learned that God joins two people together for no other to separate. We have been married for 8 years and separated for 3 months. I need strong prayers that my husband will realize that here is where he needs to be with me and our kids. I know everyone makes mistakes and I have already forgiven him for it. Just please pray for us.