Advice on this please

The other day my bf (22) and I (20) were talking over facetime about Christmas and being excited or unsure of our gifts so far. I mentioned that I had asked his brother (21) through snapchat to make sure the gift was something he would like and he said the gift was dope and so I was excited for Christmas for him to get it. This immediately angered him and he started getting mad that I had asked his brother at all, I told him I wouldn’t care if he asked my girl cousin if she thought I’d like x gift or x color scheme of it but he would not stop yelling at me, I could barely get a single word out and he hung up. I then texted him asking why he is so upset and that its his brother and reiterated that I wanted to make sure I got something he’d really like and again, that I wouldn’t care if he asked a female cousin of mine the same, all in one message. He immediately texted back “yo on God the fact ur texting me lies is what’s making me block u rn”. And then I was blocked. Im so frustrated because he is acting like im lying about the fight he started by getting angry at me asking his brother, very simply ‘hey do you think he’d like these I know hes talked about this brand but am not sure between these items” thats it. Im also annoyed because he has ghosted and kept me blocked since. I feel like this is a silent lunch punishment for asking him why he was upset about what he just said verbatim what he was upset by and him acting like im crazy and making it up when he just said it!!! I know he does this thing where he will get upset about something over call and then act oblivious to it over text. I dont know if its because he knows its an odd way of thinking and doesn’t want “receipts” (he wants to be a famous musician, no he is not close to that goal rn and works a regular job) or what. For example in the past he got mad at me on ft for wearing a choker necklace, hung up then acted like it wasnt true over text but when we were back on ft continued to be angered by it. He also has made me mute his cousin (male) who followed me on ig because he “didn’t want me to see his posts”, will mot allow me to follow his guy friends back who I’ve met with him ect. (He follows their girlfriends and some of their ex gfs) I really dont know what to do and this argument is so odd to me I really wasn’t expecting him to be so angry to the point of hanging up and blocking because I asked his brother if he’d like a gift and now ive been blocked for going on 2days now (he’s blocked me on things before and has ghosted me for days in the past to “prove a point” and I honestly hate it, If you’re angry thats one thing but to then cut off any dialogue that could help lead to understanding or a resolution is just so counterproductive in my opinion and just makes me feel alone). Ive been with him for years now and it seems that the relationship has gotten worse and worse over time and I dont know how to fix this or when he will say we can speak 😔