confused feeling

My husband wasn’t smoking cigarettes for years and started again & it really hurts my feelings. I am 33 weeks pregnant and it took me awhile

To stop. I stopped when I became pregnant and been strong ever since. I know once I have the baby I will fall back into cigarettes bc my husband will be doing it. he hated me doing it so I’d do it when he was at work or I was at work before I got pregnant. Now that he smokes it’ll be easier for me to fall back in. 😔 I know it. Sounds silly but he’s the one who made me want to quit to begin with then I became pregnant so I had no choice. I’m just confused and hurt as of why he is smoking. is it my fault? Is he stressed out by my pregnancy I complain bout all the time due to many complications. 😔 I tried to talk to him about it but it went left.