Having sex for your partner

This whole covid thing has been really stressful. When boyfriend asks, I'll say not now and he'll wait before asking again like it's going to change and eventually Ill try for him but it honestly emotional draining because I'm just there. I don't want to come across as mean, but he also been smoking more and I honestly don't find it attractive. I'm trying not to complain when he does, but I feel like if he gets to smoke because he is stress I shouldn't put in when I'm stressed. It's not his fault because he doesn't know I feel this way. I'm going to talk to him tomorrow, but I just wanted to put this on here for who might be going through the same thing. Have covid affect your sex drive or the relationship with your parents?