Vaping

I have a vape and use it occasionallly. My boyfriend is super against it even tho it’s not an often habit. He knows I do It but didn’t know I had one. I was scared to tell him I bought one because of how he views it. Anyways a couple days ago it fell out of my pocket and he was super upset that I hid it from him. I felt rlly bad and appologized several times but our relationship still feels off. Any advice??