For a woman who has limited time to date and frolic, trying to uphold rules A man will wait 90 days and still decide he doesn't want to stick around. I know One way for a woman to determine if a guy is a total s*it is to sleep with him early.
31 Mar 2015 In the book he refers to a 90 day rule that he believes works well. This rule states He compares having sex for the first time with a man you are dating to work benefits. He says that if . up Vote down. 's avatar - Go to profile.