AITA for my reaction to my fiance Christmas gift?

I’ve been going back and forth for days on whether or not I should post this, but I’ll do just to get it out of my system. I’ve never been on reddit before, so fair warning if I mess something up. I’m using a throwaway account because I’m embarrassed having to ask this question to begin with, so I’m going to leave some things vague on purpose. The only things that I’ll admit is that I’m Black (26f), my fiance is Caucasian (27m), and he works in the tech industry. I’ll call him Dave.

So, Dave and I decided to spend our Christmas with his parents, his 3 brothers, and their spouses. Dave got a huge bonus this year and told me he “was going to go all out for me” this year to make up for the past Christmases where we couldn’t really afford anything. He asked me what I wanted and I said I wanted a popular fuzzy bag that was making the rounds on social media.

We all opened gifts on Christmas Eve. One of my SILs got a fur coat, the other an air fryer she really wanted, etc. When it came to my turn, Dave handed me his phone. I looked and thought I was going to see a track package page for the bag. Instead, all I saw was an art picture of a monkey that was suppose to look like me.

I asked him what this was, and he said that was my gift! He then started explaining to me how he had gotten into investing earlier this year and had saved up to by it for me. He then showed his family who were just as flabbergasted as I was. I asked him how much money did he “invest” in this. He said 8k.

Everyone started laughing, which made Dave mad and made me even more embarrassed. One of his brothers even brought up the point about how it was poor in taste to give a monkey picture to your Black fiancee. Dave asked me if I was ever going to defend him and at this point I was so humiliated that I just got up and locked myself in the bathroom for a good cry. An hour later I called myself an Uber and booked myself a hotel until I could make it back home.

Dave called me and said I was the asshole for bring down the mood in his family’s house and for being materialistic. I told him that all I wanted was a $200 bag and he spent 8k on a monkey picture! He told me that he was investing in our future together and that I just couldn’t see his vision. I’ll admit that there were better ways I could’ve gone about reacting to the gift, and I do feel guilty about totally running off like that without any warning, but I was completely uncomfortable with the situation and I didn’t feel like staying around to be laughed at.

So, AITA here?