Would you be upset?

My boyfriend does coke maybe once every two weeks. It bothers me so much because although he's still the sweet guy he normally is, I just can't find a reason as to why this turned into an a occasional thing. I won't deny that I used to do it before I was pregnant. Maybe about the same as him. I just now think about my daughter who's due in December and then get mad that he continues to do it. And at times he used to deny, for whatever reason it was. I never gave him shit about it until I told him one time to stop lying to me about doing it because I was just asking. I can tell right away when he's on it and it seems like he opens up a lot more when he's high. Anyway.... Would you be upset?