Mister Poll: Am I "blowing things out of proportion"?

That's what I'm told time and time again. I'm in my late 30's but pass for mid 20's, 5'9", 120 lbs, always dress and look nice, wear sexy lingerie, love to go out, am playful, affectionate, sexy, loving and have a very high sex drive. Then what's the problem? My husband, who is 10 years older than me, not in that great of shape, completely gray and looks older than he is (people ask if he's my dad), has a terrible habit of checking out other (usually much younger) women, even when we are together; even once scooting up to look around me at a woman at the pool during the dinner that I had prepared for him. I have explained to him time and again through conversation and extremely long, detailed letters as to why I think his actions are hurtful, humiliating, degrading and disrespectful. I have explained that I am not blind either; that I notice the hard tight abs and biceps as well though I don't feel the need to "look", let them see me looking and certainly would never disrespect him by letting him catch me looking. He doesn't "get it" and says that he loves me and that I am the most beautiful woman in the world to him and that I'm blowing things out of proportion. I say his actions speak louder than his words and frankly I'm pretty tired of it and feel I deserve better. What do you say?