God guide my feet!

I am dating a man who is in the process of divorce. He has been seperated from his wife for awhile now and according to him, she left him. After fasting and praying he truly believes that God released him from his vow. He has already filed the paperwork and in a few months time it should be completed. We are both Christians and we both believe in the sanctity of marriage. Richard says he intends to marry me as soon as he is able and deeply wants to build a new life in Christ with me. I have never been married before and truly want to do Gods will. Is it right for me to marry a man who is divorced for reasons other than unfaithfullness. Will I be seen as unclean? I love him very much and I am amazed at his conviction to Christ. I believe that he is truly a man of God and I know that he has helped me with my desire for a closer walk with the lord. I guess I need to feel confident in my choice to marry him. I have prayed about this many times and I will walk foward in faith but, I need encouragement from anyone who has been in my shoes and knows what I am facing. PS. he has a son (7) and I have never dated anyone with children.