Dear Annie: My boyfriend works in healthcare but can’t stop vaping

Dear Annie: My dad died of lung cancer a few years ago, and because of that, I abhor smoking in all its forms. The problem is I just discovered my boyfriend, who is a nurse, has been secretly vaping behind my back. I was shocked and upset not so much that he did it (which is bad enough) but that he went through great pains to hide it from me. Plus, he works in the medical field and should know better!