Go to the Luann comic and search for May 26, 1996. That’s the one missing here. Not sure why it wouldn’t make it here, though. Nothing offensive or problematic about it that I can see.
Aaron Hill moved away, I think to Hawaii. It was time for Luann to grow up and stop obsessing so much. As I recall, he returns once to visit and has a serious girlfriend with him.
Toni comes into the picture when Brad also matures. He goes to firefighting school and meets her there, leading to some issues with her unstable boyfriend at the time, Dirk.
It’s nice to have a big bad villain again around here. We haven’t had anyone stirring up problems since Ann Eiffel, and really no tough guy villains since Dirk.
Not LuannAgainn. You have to go to Luann (the original).