Why?

Its 4.30 in the morning and i've been up watching Bones, one of my favourite shows online. For some reason, this thought comes to me. Why do people cheat? Here I'm talking about cheating in relationships. Why?

I mean, if you're in a relationship(r/s), that's run dry so to speak, or has no more spice, and you're left wanting more, or just different things, why not just get out, instead of straying? Marriages are more concrete forms of r/s i do understand, but i'm talking about in general. Why would you want to hurt the person who had been with previously, by being with another person?If of course, both parties feel nothing for each other(which by the way is worse than feeling hate), the r/s should be ended, right?

One can argue that flings, or even one-night stands mean nothing, so its alright. However, if you share a sexual r/s with your partner, and for some reason or the other, your partner has a one-night stand with some random person, wouldn't it still hurt? From what i've heard, sex is a very personal thing to be shared between 2 people, right? Why just ignore all that for some random person you just meet, while you're drunk out of your mind? Of course the fling probably still means that the cheater still loves only his/her partner. That would be his/her arguement right? But wouldn't you say that, a fling, if met with the right person, a person that the cheater never thought would be so good and close with, happens, that it can develop into an affair? And isn't that worse? When your partner or spouse falls in love with another person, while you're still in love with him/her? Because can't full-blown affairs develop from one-time flings, or even a chance meeting? I'm probably dramatising the whole thing and I probably sound ridiculously naive and innocent and critical, and yes, maybe I am, but even though I lack experience in the whole r/s arena, OTHER people in the world have the same thoughts and feelings I do regarding infidelity.

Granted, marriage is more complicated than an informal r/s, especially when children are involved. One can't say that , oh, after 7 or 10 years, the spice has gone out of our marriage, we've fallen out of love and aren't blinded anymore, so instead of cheating, we'll just split up. There are ways to spice up the marriage I assume, ( me being uninformed in this area), ways to improve and ensure that you still stay in love. Why not try that for a while? This goes for even less formal r/s-es. There's always an alternative, to doing something morally incorrect, right?Infidelity is not a crime, true, because for something to be a crime, if I remember correctly, it has to break a law, and be morally flawed, or incorrect. Jay-walking is breaking a law, but it isn't morally incorrect, thought i know you can be fined for doing it. Infidelity is morally incorrect, extremely in fact, but it isn't breaking a law. That doesn't mean people should do it right? So why then, please enlighten me, of the other reasons why people cheat and hurt their loved ones?

shini