There's a big problem with what people seem to often do with media is think that if someone likes someone else it automatically has to be romantic. I mean when someone has a crush or loves someone else then it will eventually be a "happy ending". No, the world doesn't work that way. Your love doesn't mean that other person will love you. Maybe never. If they love someone else, if they don't like you or are not attracted to you etc...
It might be hard but-- it doesn't mean you're entitled to them. At all. Your feelings for them don't give you a claim on them. No matter how powerful those feelings are. You must never force or manipulate them into anything. That's not love. That's infatuation, with the abuser's possessiveness. If you really love them you have to want what's best for them. Which is to be with the one they love.
And it's definitely not to get hurt or forced into anything.