Yelling at me over gum?

So we go bowling, as we do a couple times a week for leagues (which is one of his interests). Had a fun time. Get home around 10:00. I heat up dinner I made for us, we're just chatting. I wash the two dishes we used, and there's a small object on his counter that I can't make out without my glasses because I'm old LOL. So I pick it up and say what is this? He says a piece of gum. I kind of laugh and say that's kind of weird, you don't really chew gum LOL. He then tells me I asked a lot of questions and wants me to answer how many questions I asked, exactly. How many questions did I ask about a piece of gum?? Are you kidding me? Who cares? It's a piece of gum! This turned into me walking out, going home because I'm not going to sit there and entertain his crazy thoughts and ideas and picking a fight over literally nothing. This continued until the next day where he says we can talk about it, so I go there, then he asks why I'm so negative? Mind blown!