What do i do!?!!!!! please help!?

my husband apparently heard me making some noise when i was sleeping and the next morning he asked me were you having sex in your dream last night or something and i laughed and said ya and he said with who and i said with brad pitt and laughed cause its no big deal its just a dream its not like i love brad pitt or anything haha, but my husband said his feelings are really hurt by that and hes been acting weird and sad for the past few days but its not like he dosnt have dreams about other women, what do i do though because my husband is obviously hurt by this.