Sex 😩

So my husband and I don’t have sex everyday. I have no problem cumming for my husband . Lately it’s just he asks me to do it and expects me to do it, as oppose to doing things for stimulation to allow me to cum naturally for him. I have came for him several times before and he thinks I don’t know when I cum but I know my body I know when I about to pop. I tell him foreplay helps before actual penetration. I love giving my husband head. I love the way his penis feels in my mouth. I moan when I give him head. I literally make love to his penis with my mouth and he enjoys it. It’s just stressful when asked to cum for me as oppose to getting me in the mood and then asking. I don’t know what to do. I don’t want to say stop asking me to cum for you, cause I don’t want to think I hate when he ask that, it turns me on. I just don’t want to force it. I want it just flow.