Exactly what things do you have in common with your girl/guy?

In the beginning of my last relationship, we had so many things in common it was unbelievable - even down to the same blood type. At the end, the only thing we had in common was politics.
I don't even know what happened to all the other things that left our relationship - like our love for music, having laughter 🤗 all the time, and other things of course.
Exactly what things do you have in common with your girl/guy?
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