Rewatching after 15 years... why Haley?

I watched this when it was first airing back when I was in high school. I think I only watched it for a few seasons. I didn't watch the ending. But tiktok got all these clips making me go back to watch. So now I'm 5 episodes in and I don't remember anything about this show. Haley is pissing me the eff off with how she's completely compartmentalized and ignored Nathan's terrible behavior. I vaguely remember she gets better. Please tell me I don't have to wait long....