I love him but he loves someone else.

Ok, if you are not dating, you may like him, you may have sexual desires for him, but you can not love him, Love is something that grows over time as a couple work hard to make a relationship work.

But if he is with someone else there is little you can do but move on.

Love goes two ways, and though you may be attracted to him he is unavailable. You can do nothing about this feeling for someone else, but move on, find a healthy way to have love, and show it. It is wasted on someone who cannot return your feelings in kind.

Move on its not worth wαiting for-- it could be yeαrs, months, weeks.. αre you willing to wαit thαt long? lαter on αfter if he does love you bαck you'll see you don't love him-- love unresponded is intended for α reαson