There was a rumor my husband was unfaithful...

I talked to him about it, he cried, saying he can't trust anybody anymore, and that if he wanted to cheat on me he'd of left me already.  It was very emotional and very heart breaking. I believe that he didn't do it but I can't stop thinking about it. I hate this awkward feeling that I have. He recently told me before the new year that he's ready to have a baby, and expand our family, and that his New Years resolution was to be a better soldier, man, and husband. Shouldn't I feel comforted by the fact that if he wants to start a family with me then that means he really does love me and value our marriage? This feeling just sucks so bad and I don't know what to think or how to feel. Please help.