When you plant lettuce, if it does not grow well, you don't blame the lettuce. You look into the reasons it is not doing well. It may need fertilizer, or more water, or less sun. You never blame the lettuce. Yet if we have problems with our friends or our family, we blame the other person. But if we know how to take care of them, they will grow well, like lettuce. Blaming has no positive effect at all, nor does trying to persuade using reason and arguments. That is my experience. No blame, no reasoning, no argument, just understanding. If you understand, and you show that you understand, you can love, and the situation will change.
If we are not empty, we become a block of matter. We cannot breathe, we cannot think. To be empty means to be alive, to breathe in and to breathe out. We cannot be alive if we are not empty. Emptiness is impermanence, it is change. We should not complain about impermanence, because without impermanence, nothing is possible.
When we come into contact with the other person, our thoughts and actions should express our mind of compassion, even if that person says and does things that are not easy to accept. We practice in this way until we see clearly that our love is not contingent upon the other person being lovable.
We really have to understand the person we want to love. If our love is only a will to possess, it is not love. If we only think of ourselves, if we know only our own needs and ignore the needs of the other person, we cannot love.