He said he'd call, he called. He said he'd pick you up at 7, promptly at 7 the doorbell rang. He said you didn't look fat in those jeans. You believed him. That one doesn't count, gullible and predictable are not interchangeable. 

Had he not called, picked you up at 8 and really thought long and hard before commenting on your ass, while you waited with baited breathe, you'd apparently be more inclined to be attracted to him.

Really?

Really.

At least according to the latest research. Unpredictable behavior is more alluring. The brain, it appears, is wired to react more favorably to stimuli that wasn't predictable. 

We all know someone who has lamented to anyone in earshot that they are in love with a cad. The outcome of this lament will be, no doubt, a "but I love the guy."

Now if her friends understand it is a physiologically prompted need perhaps they will be more forgiving.

Unlikely.

The conventional wisdom is that we'd all be institutionalized if only unpredictable behavior guided our choices. "Our conscious knowledge", says the author of the article, "overrides our unhealthy or undesirable impulses all the time." It continues with "we are expected to be in charge of our brains."

These researches apparently haven't met Brittney Spears, the Kardashians, or Rihanna, nor any life long members of overeaters anonymous.