Please argue this? See if you can come up with a valid counter for my argument?

If a man and a woman are in a close, loving relationship, sex with others should be ok.
Why?

well...
Society classically deems that sex with others when in a relationship is a big no, and believes that no excellent or lasting relationship can occur when there are multiple sex partners.
But there are two types of attraction- emotional and sexual. While both are important in a relationship, sexual attraction is a dime-a-dozen, and emotional attraction should be the unique element occurring only with the 2 people in the relationship.

When a man sees a hot woman on the street, even if he's in a relationship, chances are he'll be attracted. His desire for the woman is comparable to any desire for a source of pleasure such as cake or a video game. The difference is, because he desires a human being, and his sexual desire for her may overshadow his sexual desire for his partner, his partner may feel jealous or bitter. Women don't get jealous of cake because it provides pleasure, they only get jealous when someone in a comparable category to themselves (i.e. another woman) provides the pleasure, because they see it as a threat. And it's true, obviously you don't want your partner to be attracted to anyone else in any way, but the way you should look at it is that your partner will always have desires for other things aside from you, and aside from sex, there are still many unique things you share that no one else can provide.

However if approached correctly, and if the emotional bond is strong enough, sex with other people should be ok because it is just a way of satisfying pleasure. As long as you are careful not to develop emotional attachment (this is easy to do for men, but harder for women).

Really the only problem with sex with someone outside of your relationship (aside from when people stupidly get too close and develop an emotional relationship) is that the partner generally may feel worry or concern that someone else is providing their partner with pleasure-because when someone else is giving your partner a lot of pleasure it makes you feel like you're worth less.
The keys for this to work:
a. You have to identify that sex is not the focal point of your relationship, and that an emotional bond is. And it's ok for other women to provide your man with pleasure (or vice versa) because you have unique elements to your relationship which no one else can share.
b. Don't get attached to sex partners- don't get personal or else you may develop an emotional bond, which is bad.
c. If your relationship is strong enough where good sex with someone else doesn't make you want to be with that person, then it is a good relationship. If not, then clearly the relationship wasn't meant to be anyways.
The main advantage/argument for sexual monogamy in a relationship is that if you have sex with only your partner, it can be used as a bonding tool, because that experience is unique to just you and your partner. Clearly you should weigh the benefits and decide what's right.

anyway, if she cares about you, she should be having sex with you
and if she cares about you, she would care that it would hurt you that shes gunna have sex with lots of random men

ps. swinging is nasty

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fo-sho fo-sho

Just out of curiousity...are you sexually attracted to other women?

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"Under the hardness of her facade a woman's heart is still beating."