Bf problem 🫩

Idk how but i sometimes make my boyfriend upset and he jst goes quiet and it makes everything really awkward and it sucks too because its literally right after were like laughing and having a good time like helloooo?? And we talked abt this like to say "hey this bothered me" when it happens but instead you can jst suddenly notice a random change in the air and it's like oh hes upset and thats it. And I don't want to be like hey are u mad at me cus he jst makes it so awkward still and also I really dont want to get in a argument and its better to let him cool down. like broooyhwhshshdjs I hate when this happens and I get so much anxiety and ive tried to tell him bro trust me like I sometimes say things and I dont notice they're mean but if u tell me hey this was rude ill correct my actions and apologize trust me but if u jst stay quiet and scroll on reels as I sit there... thats not helping. Or if I act normal he replies to me dry. It makes me so frustrated and we had this conversation clearing this air last month and it isnt fixed. I dont want to bother and spend my energy telling him to tell me what I did wrong & I dont like when u do this and him jst say "u were being rude" thats what happened last time and ill say the same thing as last time. And litterally what happened tdy that made him quiet was cus j realized what I was gonna say was kinda mean so I told him im not going to tell him. But that made him upset? I might just seem stupid but idk i try to be as considerate as I can but it feels like I fail. And I am truly apologetic when I find out what I said was rude I truly do I dont want the things I say to cause harm. Like what do I do??