When you are using a long-distance method to achieve sexual intimacy with a stranger who you never get to know, you are not achieving true intimacy. And if you are using that on a regular basis, it's preventing you from getting sexual and emotional intimacy in your life. Anytime you prefer to have online sex to actual human company -- a friend calls you up and asks you to dinner and you choose not to go because you'd rather engage in online sex -- that's when you're headed for trouble.