You don't need his permission to go. If he doesn't love you, there is no way to make him love you. Don't stick around because you think he will change.
Show them how much you love them and in what way you love them. It maybe that they just aren't into you OR you have to show yourself to them in a way that they can see you love them. A romantic...
you show them that they can trust you, a lot of people guard themselves because they werer hurt before. so prove to the person that you wont hurt them, and it;ll just happen