Am I overreacting for wanting a divorce

My husband asked to have a dna test on one of our twins because he didnt really resemble him as much as the other one. He wouldnt take my word for it and so i had them tested to settle the matter once and for all. Now that he has proof they are both his, he wants to make up with me and what I really want to do is divorce him for putting me through this for absolutely no reason.