Anxiety attacks

So the other night my husband woke me up by having sex with me, I don’t remember much but I remember that I couldn’t breathe and just wanted him off, I felt bad and felt like he was mad at me for it. He started saying that his ex girlfriend would pretend to have them when she didn’t want to have sex, he thinks I have been cheating because I haven’t been wanting to have sex or be affectionate. We have two toddlers and I am a stay at home mom. I’m normally exhausted just with all of their appointments and trying to keep the house clean. I’m not sure what to do but since that night I have been feeling extremely off