To gain anything useful from this question, it is necessary to define what criteria are being used to determine if a relationship is "successful". The question and the resulting responses are useless otherwise. There is quite a difference between "I'm not very happy in my marriage, we never have sex, my wife nags me constantly, I work 60 hours a week and have to do all the housework, but my wife hasn't divorced me and taken the kids and my house (yet?)" compared to "me and my amazingly hot 10/10 wife have sex everyday, she is perfectly obedient to me, as are our ten home-schooled children who are in perfect in every way".

To gain anything useful from this question, it is necessary to define what criteria are being used to determine if a relationship is "successful". The question and the resulting responses are useless otherwise. There is quite a difference between "I'm not very happy in my marriage, we never have sex, my wife nags me constantly, I work 60 hours a week and have to do all the housework, but my wife hasn't taken the kids and my house (yet?) so I call this a successful relationship" compared to "me and my amazingly hot 10/10 wife have sex everyday, she is perfectly obedient to me, as are our ten home-schooled children who are in perfect in every way".

To gain anything useful from this question, it is necessary to define what criteria are being used to determine if a relationship is "successful". The question and the resulting responses are useless otherwise. There is quite a difference between "I'm not very happy in my marriage, but my wife hasn't taken the kids and my house (yet?) so I call this a successful relationship" compared to "me and my amazingly hot 10/10 wife have sex everyday, she is perfectly obedient to me, as are our ten home-schooled children who are in perfect in every way".