Curate, connect, and discover
You know, when Harry is wildly uncomfortable with girls crying, you'll see that with Cho, Harry has this "burning desire to leave the room" or just wishes she stopped crying altogether.
Opposed to with Hermione, where he wishes he knew how to comfort her because he wants to but just doesn't know how to and I think that tells you everything you need to know about Hermione's importance in Harry's life.