5. You get to do more with her: Things that are too sane or decent; things that you cannot do freely with the main. Technically, she gets to know you more.
You might not spend all the time with her, but you get to be more intimate with her. Chances are that you tell her more of your issues and challenges than you tell boss lady.
6. Usually truthful: You barely have to lie to the side chick. In the first place, his whereabouts and communications are not your business.
But if you insist on the details, he would most likely spill the truth. If he’s out with the boys, chances are high he’s correct. And if he says he’s with madam, he probably is with her.
The only exception is maybe when he’s with the 2nd side chick.
7. Most importantly, the reason why you need a side chick(or to be a side chick) is because you are still a child and not ready to be serious!