Advice about boufriends sleep talking

Chelsea • Ttc!!!! Baby number one!
My boyfriend talks in his sleep alot, i guess its because his dreams are very vivid. Anyway a few nights ago he said a girls name several times and was also talking about a girl new at his work. Of course the next say i asked him about it and he denied it. Then last night he was saying he likes this new girl at his work and was saying shes pretty.... Honestly sometimes i can get him to conversate with me in his sleep its pretty crazy. The main thing he says it his sleep is about work, hes a cook so he will say "order up" or i" need rice", so its all valid and true stuff its not lile hes saying hes under a waterfall riding a unicorn in the clouds. Lol, so after i asked him about it today he got very very upset and mean with me all day like almost angry. And even was jacking him self off to porn which he has mever done infront of me. Any advice as to how to deal with this.