I can understand that. It's not the same, but whenever I think about my dad, it can be a lot easier to remember the bad than the good. But I can take the bad with the good if you ever find yourself veering that way with your memories of her. They're part of the memories, part of the whole package. But maybe focusing on the better things will help cement them even more in your mind. Or remind you of other good things, so they end up outweighing the not so good stuff.