After 10 years of sexually frustrating marriage , I sought the embrace of another man. For the first time I had the big O. For the first time I had sex more than once a day. For the first time I had sex that lasted more than 5 minutes. He's married. I'm married with kids. There is no future for us. So why is it that I can't stop thinking about him? Waiting for him to email me? Hoping that he cares about me (but deep down inside knowing that it's just sex for him). I'm beginning to think that perhaps I need to leave my husband despite all the other good qualities. I'm in my 30's. I can't imagine living for another 30 - 40 years sexually frustrated and seeking fulfillment with other guys.