Does he even love me?

So I’ve had some problems with my long term boyfriend. Let’s ignore the last and focus on the now which is, whenever we get into an argument he gets mean. And when I say mean I mean, we were just talking about education and whatever and he said that “my sisters benefitting herself by getting extra classes in now” and I said “yea she really is but in my view education is education either way she’s doing what she loves so it’ll benefit her either way”. And he started going off about how I’m a know it all and that I annoy and bother him everyday... like what? He has anger issues and such but I am not going to stand for shit like this every petty argument. I never attack him personally so why does he do it to me when he SAYS he loves me. He tried to explain himself by saying he’s easily bothered but shit man that’s not okay... I love him but him doing and saying things like this to me is not alright and I want him to stop.