I've got a complex

This weekend, I went through two large shoe boxes full of photos from high school -- one full of random pictures and the other filled with old letters and pictures of an ex-boyfriend. I threw away a good 50% of all the junk I looked through and was able to consolidate it all to one shoe box. But before I trashed them, I opened all the little notes from my ex and nearly all of them contained something similar to the following:

Allison,
I miss you. I noticed you were uncommonly quiet today and I know something's wrong. I hope it wasn't something I did but if it was I'm sorry. I know I'm not the greatest guy... blah blah blah....

I must have read...like, twenty notes and cards that all sounded something like that! What was wrong with me?! Was I always annoyed at something? I must have been the worst girlfriend ever! Geez! How do people put up with me?