<human>: Throwaway for obvious-to-me reasons.

Along with a bunch of great gifts that my parents usually give me for my birthday, my dad gave me an envelope. I went to open it and he told me not to open it until I got home.

So I got home, opened that up, and it was a two-page letter. The first page was really warm and fuzzy — he's proud of me, he's proud of my romantic relationship, and he's proud of my job. On the second page, he apologized for vague perceived transgressions. He's sorry for being angry sometimes, for letting his "corrosive behaviour waste" important years of my life. He claims he's failed me in so many ways.

Only one thing wrong with that: I have no idea what he's talking about.

I remember him being angry with me sometimes. I remember times when he would get exasperated with me and yell at me. But that all seems like normal parent stuff, doesn't it?

Maybe I've blocked out the really bad stuff, or maybe he's just a softie, but I really can't think of why he would feel the need to apologize for being a human being. I don't really want to bring it up, either, just in case there *is* something bad in there that I've blocked out.

> An aside: a few years ago, he took me to lunch and started off with an apology. We were on holiday as a family about 5-8 years prior and apparently he said something to me that he "thought about every single day" and really choked him up. Again, I didn't know how to react and confusingly accepted his apology, but when I asked what he said, he didn't elaborate.

How do I react to something like this? He and I have talked since he gave it to me, but this letter didn't come up.

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Give me a shortened version of the text
<bot>: Got an apology letter from my dad along with great birthday gifts. Apparently, he's sorry for sometimes being angry, but I don't know why he should be sorry. How should I react to this?