"你说的话我当真了，你却把它当成玩笑"，这句话用英语怎么说

"你说的话我当真了，你却把它当成玩笑"，这句话用英语怎么说： "你说的话我当真了,你却把它当成玩笑", "I really mean what you say, but you treat it as a joke",