Men are culturally conditioned to avoid feeling and be "strong". Yeah, I know I'm over-generalizing but generalizations are useful sometimes. Now this does not mean that men don't feel as much as women, it means men probably feel as much more below the surface of awareness. As such shame and humiliation are defended against vehemently, understandably. Men more in touch with their emotions, accepting of them and have a secure attachment complex probably do not fear rejection from women. Regrettably so many people grow up in less than "good enough" care giving environments as children which creates insecure attachment styles, such as anxious avoidance, so denial of feelings becomes the rule rather than the exception. Luckily, for willing people, psychotherapy, counseling and hypnotherapy can help overcome fear of rejection.