When you love someone and it goes to waste?

Does love ever go to waste? It's painful and unrequited love just plain sucks ass. But is love ever wasted? Maybe it your spend it on the wrong person. I love many people. I don't think I understand romantic love, so I'm staying away from it. I just might not be built for it. But does that mean my love was wasted for all those hurtful users? I don't think so. I think they were actually lucky to receive my love. With I give them more? Only small bits of loving kindness that don't take away from me. And they can waste it if they want.