I'll tell you why it's difficult to stop using dating services.
1. Thy never forget their clients.
You can stop updating your profile but you'll still receive emails with top girls until you remove completely your email from subscription list. I worked for 4 years at dating service and really know how it works. Dating services send newsletters until you finally rejoin site or find a way to delete profile completely (sometimes it is very difficult to do).
Some dating services (I didn't review rsvp on my site but I hope I will review it soon) send teasers to male clients. Men gets email or just teasers to his email that his profile was viewed thinking that somebody has viewed his profile. In reality that email was sent by computer and not real women. This is the way how small dating services earns they money.
2. Men are men.
Men are men and you can't change here anything. Yes, we love our wives but we still are hunters and there is very good quote "if you are on diet it's doesn't mean that you can look into menu in the restaurant". In other words if he still use dating service it does not mean that he flirt or dating someone there.
Advice:
Delete his dating service profile together.
More Online Dating Secrets at [URL="http://www.welcometodating.com"]www.WelcomeToDating.com[/URL]