If it's something that is honestly bothering you, then you should definitely talk to your friend about it, especially as you consider her to be a really good friend. You also do sound like you need some sort of closure from the fight you had.

Bringing it up again may make her mad; or it may not. Either way, if you have an issue with something, keeping quiet for the fear of making her angry isn't a great option. It will just sit there and fester and make you feel even worse, probably further deteriorating your friendship.

I of course don't know exactly what happened between you and your friend when you had this fight, but if you decide to talk to her about it try not to come across on an offense. If I were you, I'd write down my thoughts and feelings beforehand until I understood just what I wanted to say.

But really, when it comes to relationships with people, I absolutely don't believe that anything good can come from keeping such things hidden. Things need to be communicated.

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could make me love you less...