I need some help with my bf :(?

My bf and I are both 16 and have been dating for 10 months. Here's some background info on my bf. He is quick to anger/irritated and sometimes isn't very patient or understanding. But we have had a pretty good relationship dispite that. But lately he seems to be getting irritated over the smallest things. I have told him in the past many times that it makes me uncomfortable to hold hands during the school day (because people stare) but everyday he tries to grab my hand. It's hard because I have to gently push him away. Today he told me it felt like a big "f*ck you" when I do that to him. Also, on the car ride home he was hyper and I was staring out my window when he stopped and got mad at me and said it's so annoying when people ignore him. I wasn't ignoring him btw. He just has been so sensitive lately to small little things. I feel like I'm walking on eggshells. What can I do? He doesn't open up to me unless I nag him about it. I feel so lonely. Yes, I have talked to him about this. What should I do? What can I do? Please help me :(