Why is my cat suddenly acting weird around my husband?

Our cat is so cuddly and wants attention all the time and curls up next to us every chance she gets. But for the last couple days she's been all over me and takes off running when my husband comes near me and acting like she's scared of him. He hasn't done anything to her and he hasn't been petting other pets. We are both kinda concerned about this. I am 35.5 weeks pregnant, if that has anything to do with it. But just a few days ago (which is normal) she was ALWAYS snuggling with my husband and wanting his attention. It's just recently she's acting scared of him. Oh, and she's not eating as much as she used to... So I have no idea what's going on, any ideas?