User-up of Spouses

Going through a number of spouses and using (abusing) them in the meanwhile is what they do - the user-up of spouses.

There are men and women who have apparently no difficulty in moving from wife no.1 to no.2 and then 3, same goes for some women, they have a voracious appetite for husbands, and the most intriguing part is that such people get more spouses so easily all ready to be used. How interesting is that? I have known women who have had gone through one husband, have had 3 to 4 children, and then at the tender age of 40 something fallen for some younger or older guy and lo and behold, gotten a divorce and married the new entrant! And the most amazing thing is that the husbands aren't the bad boy kind of stuff, and with every progressive one the 'nakhras' of these floozies increase exponentially. Their husbands are all out to please the spoiled wife and the battalion of children along with her. How do they manage this?

Then we have the user husband. UFF, he usually after a good number of marital years and kids suddenly realizes that the woman whom he loved is actually a bore, and has nothing in common with him, she of course has done not much for him, except keep house, looked after him, pampered him, put up with her terrible in laws, and struggled with him. Since she hasn't done much and on top of it hasn't taken care of herself as in her looks and somehow has the audacity not to look like an 18 year old. He justifies himself and finds the next pop-tart he comes along to use her and give her up.

Then there are other kinds of users of spouses, they don't necessarily marry more than once, but they put so much of guilt and pressure on their spouses that they become a shadow of their true selves. The ever demanding husband and his wearied wife, the haughty wife with a resigned husband are all too familiar sights. There are people who use and are subsequently in the 'master' category while there are others who for various reasons succumb and they have the 'slave' morality. These moral epithets aren't value coded, it doesn't transpire therefor that slave is better or good than the master or vice versa.

What magic potion do these users have? what power do they behold to entangle people in their lives and then use them for their good?