What is love? What is it to genuinely love somebody?
Just a feeling?
Children experience love almost purely as an instinctive feeling which they have little control over, it serves to attach them to the people who help them survive; they love their mother because she is their mother, there is no deeper reasoning, it is a feeling only. Even if she is an alcoholic abusive mother the child will still love her.
But as we get older our relationships start to become more complex. They become conditional on the expectations we hold for others. We love a person because we have reasons to love them. But it seems that most people never fully reach this stage and end up somewhere in the middle.
This is the reason that people have so much trouble with love; they are not explicit in their reasons for allowing themselves to feel it. If you don’t have explicit reasons then you cannot understand why you have the feeling with any clarity. And if you do not understand, you are at risk of feeling love based on a false perception of who the person is which will lead to problems as your false perception inevitably collides with the reality.