On jealousy
Found on Reddit, rewritten a bit to fix grammar issues. Interesting comment.

Jealousy, as every emotion, has an evolutionary background.

We all feel this emotion. Let me repeat myself: We all do feel this emotion. It is only question do we care enough to trigger the sensation.

What is the purpose of this emotion? It main purpose is to protect the relationship we have with our partner. The fact is that we all feel it. Our fathers and their fathers felt it long before us. People who didn't felt this emotion died long time ago. This emotion gives you a huge evolutionary advantage.

Now, the punch line. Scientific studies show that this emotion is very accurate. In fact, in the most popular study they talked with people in marriage who went to couples counseling, and had problems with jealousy. They all felt that it was a sort of burden for the relationship and that it was a problem. A problem they couldn't do anything about. They just felt it.

Now, at the and of each interview they would take aside the suspected cheater and ask the question: Do you cheat on your partner? People would answer truthfully as the interview was guaranteed to be discreet. How many people did, in fact, cheat? ... an amazing 90%.

Just think about it. The sensation of jealousy is 90% accurate*. So, don't fight it. If you feel it, you have the reason to feel it. Trust your emotions.

It would be very interesting to get the exact research on this because this information can be dependant on so MANY variables such as,
-Is it women or men feeling this?
-What was the age group of these couples?
-How long have the two been in a relationship?
-Sometimes people think the other is cheating when they're not, and sometimes they don't think anything when the other is.

The only reason why I question this kind of stuff is that my girlfriend in the first three months thought, for sure, I was cheating. I swear on my PUA life I didn't touch a girl. The frustration of her continously assuming that I was cheating though, started to put thoughts in my mind to cheat. At the peak of frustration I almost cheated because I was just pissed of the accusation without the action.
Thank fully I never did cheat.

This kind of thought process in psychology is known as 'self-fulfulling prophecy.' Basically, your definition of a situation is false, however through reaffirmation you begin to act out the 'false idea' until it becomes true.

Samex