1. You think you should feel guilty for being here, and are trying to convince yourself.
2. You want attention.
3. Its a cry for help.
If its No 1, and you aren't really feeling guilty - accept it. Acceptance is the best way to move on emotionally, spiritually and sexually.
2- If you want attention, why?
No 3. Why don't you see if your wife will come online with you!! Lots of men and their wives come on here.. if the mood is right, and she feels comfortable, then why not broach the subject? You never know - you could be in for a wonderful surprise :)