Is this a reason to be offended?..?

You know your friend pretty well sounds like to me and she may be offended if it came across the wrong way in a letter, rememeber a letter is not like looking at each other while you are talking, its in a totally different context so I think you should try to call her if you really want to fix your relationship. I know I wish I had held on to more of my friends when I was younger, now I don't get see very few of them and if we would have been closer then we might be closer today.