Everyone's been in the situation before. You meet your friend's new partner for the first time, pleasantries are changed and everything is perfectly amicable, but you just sense that something is not quite right with them as a couple. They seem just a little too … different.
Fast forward a couple of months and the pair are going from strength to strength and you begin to wonder where the chemistry is coming from. He's tall, dark and shy, while she's petite, fair and very rowdy. What exactly do these two see in each other?
Well, there are a number of theories on why opposites attract. Studies have shown that women are genetically pre-programmed to target men that are different to them. Biologically, this means that because they have very different genes then they will have different immune systems too, which consequentially means that their offspring would be very resistant to diseases.
Indeed, scientists now believe they can predict how monogamous a relationship will be with a simple DNA test. But of course, this is not something that's likely to be determining the outcome of relationships anytime soon.
The game of love: dating to determine compatibility.
On a more practical, day-to-day level, the whole dating process helps determine people's compatibility. Whether they meet through friends, at work or an online dating service, the end result is usually the same. They'll meet for drinks, sometimes a meal or a movie and they'll either hit it off straight away or they will not. People tend to know fairly early on in a relationship whether it's going to turn into something serious or not.
Whether our appearance and personality are polar opposites or not is almost irrelevant. Gut instinct is everything in the dating game and the success of a relationship all depends on whether you have followed your intuition, or chosen to ignore it.