Boyfriend Won’t Talk To Me

Yesterday my bf asked me if the video he posted on tiktok was any good and if he should delete it or not. I said “idk up to u” and he flipped out. He wants me to care more abt it but I never know what to say cause it’s just TikTok it shouldn’t be a big deal. Anyways he r bombed me and didn’t talk to me all day. Last night I was like what’s wrong and kept calling and texting him but he ignored me. He works during the night and usually calls me as he works but wouldn’t answer. Then he finally calls me back and was talking fine on the phone and I kept asking him what was wrong and he said cause of the TikTok thing and then hung up in my face. He then texted me saying I don’t support him which is crazy. (Btw I’m 18 and he’s 20 been together almost 3 years). Moving on it’s now a day later and I asked him how I don’t support him and he says “u complain when I play guitar” and still abt the TikTok thing. ( I made a joke a while ago saying that he always plays the same song which apparently hurt his feelings). ( also for some back info he not that long ago told me that when him and I first started going out he kissed another girl while playing guitar which makes me hate it) He still has not called me and I feel like he made a huge deal out of something small.... am I wrong? What do I do... he’s making me feel like I’m a bad gf when I’m not help!?