Yu-sama
This is Kawaguchi Hidetoshi. This is my humble answer to the question.
We believe that the character “love” is formed by accepting each other's hearts head-on, just as there is a “heart” in the middle of “receiving.” Conversely, it can be understood that it cannot be established unless the other party receives it.
On the other hand, although it is difficult, Buddhism also has “mercy” as a concept close to “love,” and it is a heart that truly takes pity on the other person's suffering and wants to somehow get rid of the suffering and save them, regardless of whether the other person receives it or not. Furthermore, it is hoped that everyone will aim for equality rather than someone specific.
In order to open up one's heart, I had a slight idea that the nourishment of mercy in order to give mercy to everyone equally might be a breakthrough.
By all means, please raise your interest in the Buddhist compassion and start learning Buddhism.
I think the best recommendation is Master Shanti Deva's “Iribosatsu Gyokoro,” but I also think it's too difficult all of a sudden, so I think it's too difficult, so I can start with something simple.
If there's anything you don't understand, please feel free to ask any questions again.
Kawaguchi Hidetoshi Gassho