If you truly believe your husband could be doing this.. 1) LEAVE 2) go get checked out...
Definetly go and get checked out. It could be anything.
Ask him if there's anything happening that makes him come to you at that time. Maybe you are making loud noises and he comes over to check. Also you must go to see your doctor, whatever your husband says, whether it's him or something else entirely, it sounds like something your doctor should be looking into.