Should I worry about this misunderstanding my boyfriend and I had?

My boyfriend and I were laying on his bed while watching funny videos. I can't remember what was happening beforehand but we were using his laptop and I deliberately clicked a bit hard on one of his keys, but not like that hard. He then asked me not to click like that on his laptop because it could damage it. I was resistant and told him it wasn't that hard and he just kept on saying he didn't like it. I asked him what the big deal was and he then said that I went like "this" on his key. He proceeded to tap my hand like I tapped his laptop. It wasn't hard but I didn't like the physical demonstration on my hand. I asked him why he did it physically and he said that he did it so that I'd understand. I kind of took it as a threat, thinking that he was implying that I would understand something if he did it physically. I immediately got super pissed and jumped off the bed, saying I would break up with him because of that thing he said. I asked him if I should be afraid of him demonstrating a "hit" on me some day. He was looking at me in a very confused, calm and tense manner. He said no. He also said that he didn't mean it that way, not as a threat. We had a conversation and he kept telling me that he didn't mean harm by the comment and I calmed down but I don't know. It sounded kind of bad. I asked him not to say things that could be mis interpreted and to be more careful of how he expresses himself. He said ok and then we kept on watching videos. Should I let this go and accept it was a misunderstanding?
Should I worry about this misunderstanding my boyfriend and I had?
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