One Date, Two Date, Three Date, Four

Are there any rules for dating that are set in stone? Usually when we're on the hunt for that next "big catch" we go on multiple dates with multiple people. But when we find someone we feel we want to stand still with for a few minutes do we stop dating other people?

Is everyone else cut off?

1.) The unwritten rule: 

When you become close and intimate with someone you expect to be the only person they're being intimate with. That's ideal but not always the case.

2.) No exclusivity:

If He/She doesn't discuss being exclusive then you are not. You are free to do what ever you want technically and with out question.

To be continued...