Am I right to be upset?

I was drinking a McDonald’s pop I bought for myself and I was drinking it the entire time my boyfriend and I were driving (I was the one driving). My boyfriend put his cigarette in my pop without thinking and didn’t tell me and I took a huge drink out of the pop with a floating cigarette in it. I was upset and disgusted and asked why he didn’t warn me and he said he didn’t realize I was still drinking it because the ice was melted (the pop was still really full). I’m not a smoker. He’s acting like a victim and crying. Am I right to be bad.