Need advice

So me and my boyfriend have had a rocky few days together. He told me he wanted to be a firefighter (volunteer), it came out of the blue had no idea he even wanted to do it. It caught me off guard. Couldn’t really hear much of the conversation because I was at a birthday party and a lot of tiny screaming kids around. So when I went over his house that night we didn’t really talk much more about it but we starting watching a movie and there was some scenes in the movie with a firefighter saving a few people and all he said was that that’s why he wanted to do it. To save people. I started crying more like sobbing. honestly becuase I’m scared for him to do it. I really am. I’m afraid of something happening and I told him that. He told me not to worry and not to over react. He went on to say that he wasn’t going to tell me anything becuase he knew I would react that way. So instead of telling me he was thinking about hiding it from me.

We talked that part out and he says he’s not going to hide things from me like that. But I’m still scared on what to do about the situation. But if that’s what he wants to do I want to support him also. He supports me in my dreams and my career. Why can’t I? We can’t see each other till Friday becuase of our work schedules. But I want to do something to at least show him I support him. Do something nice and surprise him. But I’m not sure what to do. I just want us to have a breakthrough and see eye to eye on things again. And just stop all the fighting over little things.