I knew this site, which can calculate the relationship between two persons.
I enter my name and my wife's name. The answer is below.
It is incredible. The answer is so close to the truth.
It said: Dr. Love thinks that a relationship between david and vivian has a very good chance of being successful, but this doesn't mean that you don't have to work on the relationship. Remember that every relationship needs spending time together, talking with each other etc.
The site link is here.
https://www.lovecalculator.com/