This person does not have to go to the other to unite with him or vice versa, but both, when they come closer and closer can meet at one point between them. This can be true love. In other words, by both of them denying themselves, they can really unite with each other. And that is the standard of true love. Just one harmonious wholeness will be there.
Love alone can make things round, harmonious, circular or spherical.
In true love nothing can invade or interfere. Both parties must be obedient to each other, both must be willing to be united with each other. Together they will enjoy harmony and beauty. I want to be freed from that bondage, and I want to be a free person. But in true love, obedience, loyalty, surrender - everything is possible, and you are not humiliated by it.