Don't really love or abhor.
I mean, Ron is Harry's best friend in the entire world. He loves him and with all the other bullshit ships, I think that Harry and Ron are more likely to happen than any of the others. Ron is the person Harry would miss the most and he does love red-heads.
And I don't exactly think Harry is straight, I mean Cedric? but I suppose that could just be the bitch herself writing?
And I do believe that Harry could fall for Ron. Maybe no more than a little crush? dunno