I'm not saying this is true and I don't think it is but realistically do you think harry could have a secret long term girlfriend in secret like some blogs are saying after the blind item?
Harry is a blank slate: sexually ambiguous, desirable, sexy, polite. Everyone project all sorts of fantasies on him. His public relationships are so low key, he seems always available (he said so himself). It’s a great image for a rock star. There’s zero evidence of any of it, but it’s fun and exciting, and it sells.
Harry makes sure his real relationship stays 100% out of the public eye.