I feel so sad for you. I have had thoughts that my partner might be hyper sexual - he seems to take an unhealthy interest in women even when we are out together. I still don't completely trust him - I don't even though if he has but am sure he is an unNPD. If I were you I would be devastated and my confidence would be in shatters. I think you need time alone and he needs to get proper help if he intends to have a happy and fulfilling marriage and sex life with you - otherwise it will destroy you in the end. good luck