They can I guess. It's not illegal.
If the wife has been a loyal and faithful partner through life and he still does this even though she has fulfilled her side entirely then..
Hes a selfish cunt and I look sincerely hope he lives to thoroughly regret it.

If you lack loyalty there is no redemption. They are the lowest of the low.

I mean of course there are mitigating circumstances but simply leaving a wife that loves you and has put her all into you only because you see something younger and more physically appealing is gross.

Sure if the relationship has for years been nothing more than a sham or shell of what it should be from both sides then just agree to split up and go your own ways.

That's only my own view. Some cultures and religions may groom women to expect or accept such treatment.

Also it cuts both ways so same thing if the wife does it to her husband.

This is worse to me than a momentary lapse like a drunken one night stand. Which is still gross and demonstrates a lack of loyalty but if willing to confess and attempt to redeem then it to me personally shows some care consideration and value for the wife still exists and although still a grave and disgusting act is not entirely devoid of some humanity.

I mean it would be silly to suggest there is not temptation for you and your wife through your life. I see tons of hot girls and want most of them.  That's why I'm never getting married and always tell girls casual only.  I don't think guys can realistically handle being loyal until nearly 30 or more. The hardwired evolutionary force to bang everything you can is not something one should have to fight against until your sex drive or hormones start to decrease. Also once you hit the larger numbers the excitement or hope of something totally novel or new is gone. You know it will be similar or the same to one of the others you had a few times before.  Then you can start focusing more on say their personality and compatibility long term. I mean the foot rubs test is handy. Those that stop quickly are no good at all. I like my piggies rubbed the entire film and with some vigor. No " oh my hand aches, or is that enough now? " the potential wives just rub away until you feel a bit guilty and offer them some respite ...perhaps you just say they can run their fingers through your hair. I mean mine isn't as thick as it was a couple of years ago due to this blasted tren and test eth, so the finer hair offers little resistance and soothes their tired little paws.

I mean love is clearly simply a threshold or critical mass in areas ( you find them amusing, smart , funny, attractive, interesting, they make you feel even better about yourself with constant praise and recognition, give great foot rubs while you watch tv etc etc)where the feedback or interaction is immensely enjoyable to the point you kind of crave and require that feedback or experience in all of those areas regularly and if you go to long without satisfying that then you get frantic. I mean I'm kind of guessing since if I start to miss girls in some way then it is very selfish to retain them longer. It is best not to allow them to feel the same way so regular annoying or obnoxious irrsric behaviors can be injected to prevent their attachment to you.

So yes I digress, getting a wife and making a serious commitment is kind of forever, so you cant just later dump her to get some younger better looking snatch. That's just not loyal at all.

Casting off the wife for a younger hottie = evil. Roast in hell mofos.