Kim does treat Ron as a boyfriend throughout this whole season so far. Not a fool at all. Afterall they have been friends and they wouldnt be friends if Kim treated Ron as a fool. You notice every little thing that pops up with Ron Kim is always there for Ron besides anyone else like Bonnie as an example. If Kim were to treat Ron like a fool they wouldnt be friends. If anyone treats Ron as a fool its Bonnie not Kim. Afterall whats so great about Kim is that she cares and is friends with Ron which isnt a total loser but he is kinda. So I would say that she treats Ron as a friend not as a fool at all. If anything Kim does get mad at Ron its over what he has done not for what he is.