you were angry at him and he decided to make you laugh by acting like you.

Alexander:"baby, im going to sleep.*

3 secs later

Alexander:"baby, you dont even hug me? you dont love me." you supressed a laugh

Alexander:"baby, i hear something, its gu lu gu lu~ cause im hungry."

after a while, he eats

alexander:"Ah! baby! its 2 am, why you dont let me sleep!" you were holding a laugh cause what he was doing was so funny, your facr was turning red cause of holding laughter