Don't worry, this is not a biology blog, this is an example of how different people's brains perform differently. Case in point :

Let's say a guy named Mark asks a girl called Elaine out. She accepts, they go to an movie and have a good time. Next week,they go out again, and this continues until they are seeing no one else except each other. So one night, while Mark & Elaine are driving home after a movie, Elaine suddenly realises something:

Elaine:"Do you realize that we've been going out for exactly six months now?"

There is a dead silence for 30 secs.

And Mark is thinking:

"Gosh, Six months."

And Elaine is thinking:

"Have we been going out for so long? Do we really have a future together?Do I really know this person?"

And Mark is thinking:

"Six months....Let's see, That was way back in february when I got the new braking system...Let me check my odometer,Whoa! I'm way overdue for an oil change."

And Elaine is thinking:

"He looks concerned. He probably wants more intimacy, more meaning in our relationship. Yes, that's probably what he wants."

And Mark is thinking:

"I'm going to have those morons look at those gears again. And they better not try to blame it on bad weather this time. It's 30C outside, and this thing is changing gears like a garbage truck!"

And Elaine is thinking:

"Yes, I can see he's angry and upset. I'm sitting next to a perfectly good guy, and my insensitiveness has made him upset."

And Mark is thinking:

"They'll say it's probably a ninety day warranty. That's what they'll say!"

And Elaine is thinking:

"I've got my head too far in the clouds about my knight in shining armour and horse that I can't see the goodness in front of me. I've been in dreamland all this time."

And Mark is thinking:

"Warranty? I'll give them a warranty!."

"Mark?"

"Yes,Elaine?"

"I've been all wrong. There is no Horse, there is no knight."

"There isn't?"

"You think I'm a fool,do you?"

"No!" says Mark, glad to know the correct answer.

"It's just that...I need some time."

They drive in silence for some time until Mark gropes in the dark and finds some thing to say.

"Yes."

Elaine immediately says "Oh Mark, do you feel the same way about that?"

Mark asks "About what?"

Elaine says "About time. And how it changes people."

Mark doesn't understand a thing about the question, and the way Elaine is staring at him makes him nervous, especially if she starts asking him questions about horses.

"Yes, I feel the same way as you."

Her face lightens, and she finally says "Thank you."

Mark responds "Thank You."

Mark drops Elaine off at her home, where she crawls into bed, a tortured soul weeping into the night.

Mark, meanwhile, gets home, grabs a packet of chips and switches on the TV and watches a tennis match between two Czech players he's never heard of. A small voice tells him that there was something major going on in the car, but he finally decides not to think about it.

Elaine, meanwhile, calls her closest friend next morning and they both dissect the entire conversation of what Mark had said. They keep discussing about it for weeks, never reaching a conclusion but never getting bored of it either.

Mark is playing Tennis with a mutual friend of his and Elaine's when he pauses just before serving and asks "George, Did Elaine ever own a horse?"