Don't know what to do

Every time my husband comes home from work he asks all kinds of questions all ending up with am I cheating on him. It's really cold outside I ain't leaving the house in less I have two I dont get out from the covers unless I have to. It really gets on my nerves bc I have never cheated on him or gave him a reason to think I was cheating on him . I mostly stay at home and sleep. I don't know why he always thinks I'm cheating all the time but its starting to make me really furious with him. And hes the one that comes home 4 hours late from work and I don't ask questions about where's he been or anything. What should I do?