Zodiac compability to be considered before getting into relationship.

I  have heard checking out compability of two persons before deciding to move into romance relationship could save time for both or whether it is worth it to go out before the doom days arrived.

In fact, there are people who rather be single than "wasting" time to be together and struggle to sustain the relationship when every second feels like hell.  

Whenever I come across with old couples, who are still loving each other after decades, it makes me wonder what are the recipes? 

Men are from Mars, while the women are from Venus. Could one of them stand the other who is totally having opposite personality? For example, a man who is a messy, inattentive, insensitive, and etc? For how long? 

What is the formula of successful and sustainable love, should it be opposite attraction or having similar traits?

Many of our ancestors surviving the marriage despite one of them had been treated unfairly by their spouse. I once asked them why getting divorce or separate is not their choice? Often, the bullied always endure the torture to survive....maybe from judgment of society? or for the sake of the psychological well-being of growing children whose peers are still having "intact" family.

 

Will love between two lovers have its expiry date? Annoyance or boredom resulted from the incompatibility over long period led to nothing that can be salvaged? 

Will the presence of kids in a marriage affect the romance between parents? Will woman who spare extra love for the young and needy deserved to be punished emotionally and mentally as she did not get support but more work and complains of not doing more?

It seems that there is no definite on how to have a long-standing relationship. 

Perhaps, looking at zodiac compability is one of the ways to help one find happiness with less obstacles.