Yesterday, we discussed your friend who humps every hawt man she meets. One week later, she's planning her dream wedding to him. She changes men like she changes her underwear, and she hops from bed to bed like a rabbit in heat.
Your friend is most likely an addictive personality type who raves about her love for men she barely knows. There's a certain level of desperation that separates her from other women in your peer group.
But here's a scenario from the perspective of a non-addictive personality type, who meets a man after being single for awhile. She would probably say something like this:
"I met a guy. He seems nice. We have a lot in common. We've agreed to see each other again. I'll wait and see where this leads..."
The non-addictive personality type is not as desperate to jump into a relationship with a man she just met. She's able to think more clearly and make better decisions. Her brain is not addled by dopamine, so she is more in control of her behavior and her thought processes.
She more than likely doesn't drink, smoke or do drugs. The non-addictive personality type channels her energy into more productive pursuits (and less destructive) activities, such as jogging or blogging.
So how does all of this tie into cheating? People who have addictive personalities develop destructive behavior patterns over time, such as cheating, abusing drugs or alcohol, gambling, pornography, and risk taking.