"sure, right now, a lot & that's okay mama"

Currently, these are Trevor's favorite 4 phrases to say to me. When I ask him to do something, or tell him we're going to do a particular something that he's agreeable to he sweetly responds "sure." However, if he wants something and I'm not moving fast enough, or tell him he needs to be patient he says, "right now." One of my favorites is when I ask him if he wants something, usually edible, like a special M&M treat and he says, "a lot." Fortunately he doesn't know the difference between a lot and a little. All I have to say is, "wow I gave you a lot," and he happily takes whatever it is he wanted. The last phrase is sometimes cute, like when I hurt myself accidently and say ouch, he gently says, "that's okay mama." This morning however, it wasn't so cute. It typically takes me 10 minutes to get to Matthew's parents house, but this morning it took me an hour due to horrible traffic. Needless to say I was irritated while driving and Trevor could see this. So, he's in the back repeating over and over again, "that's okay mama." The thing is though, Trevor will not stop saying this until you tell him you are happy......