At my age (19) is it odd to never have loved a person romantically?

I am a 19-year old straight male and I have yet to get the feeling of love towards a person that wasn't family. I have had girlfriends, but on all occasions I ended the relationship because our feelings weren't mutual.
I don't know if it's because I'm scared of falling in love or if it's because my standards are extremely high (I don't think that's it, but I can't know for sure) or maybe it's because I haven't met the right person yet, but it's really a shattering feeling when the majority of movies, books and any form of entertainment, is centered about love (or at least play an element) and then being unable to set yourself in their place, unable to truly know how they feel; leading me to either become bored or downhearted.

I haven't talked to many people about it, so I thought I would ask here, if this is somewhat normal, or if I should try harder to get to the core of the problem?

Thank you.