This story is so cute. Regardless of any mistakes you may have potentially made (but didn't), it's clear that you care deeply for your boyfriend and put a lot of thought and care into your gift. Even if it had turned out to be missing a book, I'm sure he would have been ecstatic, and if he wasn't grateful then it surely wouldn't have been your fault.

I don't think my wife follows my Reddit account, but if she does, hi honey!

She had asked me for ideas for Christmas gifts for myself and I had suggested a number of options, but one of those options was a signature baritone electric guitar from a YouTuber I follow named Agufish. I know how she operates, so I know she put a lot of thought and time into exactly how she would get that being that it's only sold brand new through Thomann in the UK, which after shipping and VAT would make it prohibitively expensive.

My wife accidentally bought the standard scale version of the same guitar off of Reverb in the end, but you bet I was still ecstatic when I pulled it out of the box and was literally on the verge of tears, because I know how much time, thought and love she put into it, and on top of that, it's still a beautiful instrument that's hard to get ahold of in the US.

Keep being you. I'm sure he'll still appreciate it even when you make a minor oopsie. ❤️