Love is a completely unnecessary phenomenon. When someone really loves you it's not because you deserve it or have done something special for them. There's no reason to it. You know someone loves you by the fact that over and over again, without your having done anything except be yourself, they show you (not say to you) in the way they are with you, the way they touch you, the way they look at you, the way they simply ARE with you, that you mean more to them than the world. And yes, no kidding, this really can happen between real human beings.

Do you know for sure that neither of your parents loved you? For sure? From all of your childhood memories? That no one else, sibling or other relative, didn't love you? Not having been loved at all as a child is a very serious thing. And the love of adults for adults is not all that dissimilar from the love of parents for children. Reach deep inside yourself for any remnants of love you may have received as a child. Many people don't, but most people do, receive real love as a child. It's built into the instinctive reactions of all but the most neurotic or mentally ill of parents. Only you can tell.

As an adult, one receives love as one deserves it. All people project their personalities into their immediate surroundings. Which signals are all picked up by people in those surroundings. And those personalities of those broadcasting people include very much their capacities to be selfless, to be loving, to be caring. The people around you and everyone else know how capable you are of loving someone else besides yourself. They can feel it. Those who can't sense the reality of those capacities come from screwed up backgrounds and know neither what they want, what they need or what anyone else is capable of. The mating game is the No Man's Land of contemporary warfare.

Good luck! And take care.