There is only one corner of the universe you can be certain of improving, and that is your own self. So you have to begin there, not outside, not on other people. That comes afterwards, when you have worked on your own corner.
It is not so incomprehensible as you pretend, sweet pea. Love is the feeling we have for those we care deeply about and hold in high regard. It can be light as the hug we give a friend or heavy as the sacrifices we make for our children. It can be romantic, platonic, familial, fleeting, everlasting, conditional, unconditional, imbued with sorrow, stoked by sex, sullied by abuse, amplified by kindness, twisted by betrayal, deepened by time, darkened by difficulty, leavened by generosity, nourished by humor and “loaded with promises and commitments” that we may or may not want or keep.