You have to make it your turn to be loved. You have to drop those who can't love and never look back. Your brain has formed patterns that you can't see a place where you are loved. So you don't know how to make it happen. You make it happen by not loving those who do match your love.
When we love those who can't love us back. We are allowing them to steal the love we deserve to give ourselves and those who can love us. You only have so much time and space in your life. You should not give it to those who do not deserve it.