Stressed from my relationship

Everything went well for a while until today. My bf whatsapp me about 11am that he was going to his friend to do practice a presentation that he has to do next week at his work. I know that he goes very hardcore on his job and takes it seriously more that anything. But I was sleeping at 10, I woke up around 12 so he already left his home by then. I waited the whole day for him to call me but he didnt so I decided to call him 2 times around 8 pm. By the time I called his mom if he was at home but she said she doesnt know where he went bc she left early to her sisters house to visit.

When he came home around 10 he called me.he said he recieved my call around 8 but he was driving.

I asked him why didnt u call me or texted me? He said that "I whatsapped you at 10 but did you reply?" I said no I was sleeping and you knew that I always sleep out. "So you couldn't texted me that you woke up or call me?" then I was like.. Everytime Im out I always text you and tell you where I am and when I meet there but you just dont tell me anything?! He immediatly started to talk to me in a sarcastic way.. Ok im so so very very sorry Its always have been my fault right? Never been yours.? The way he said it ..as if Im a small child to him!.. This conversation lead me feeling down and crying on the phone then I said I cant take this stress anymore.. Wondering where you at and what your doing.. Im leaving you. He sucked his teeth saying look stop it ok with your stupid talks. My batt is dying and I am going to sleep. Bye

Girls.. Just tell me if I am wrong then I will say sorry to him if its really my fault that I havent texted him or should I just leave him? Im scared.. We have been for almost 3yrs in a relationship and he is 30 and Im 22.

I really need some serious advice. Yes when I talked to him in person abt our problems he talks nicely that he loves me etcc.. He doesnt show his anger there. But as we are far from each other things become weird.. Im scared I need some advice please.. 😔