each of the guys you are dating is a called a burner and you rotate them as you would when cooking on a 4 burner or 6 burner stove.
never keep them in one position for too long. keep it fresh and rotate their positions from front to back as necessary.
Heather 4 burners are Steve, Jack, Sam, & Chuck but Steve is on the front burner because he is the hottest and takes her on the most exciting dates. The other guys are on the back burner.