"Friends with benefits"

Well, this guy and I have liked each other for a while and we have become good friends. Recently we have both discovered are both attracted to each other sexually. The thing is, is that he wants to be "best friends" the days we don't do anything and act like we don't do anything. But on the days when he wants some he labels us as "friends with benefits" and "his most favorite friend" and compliments me nonstop. If its one of those days that we don't do anything he reminds me that we are "best friends" and this happens when I compliment him in a semi romantic way. Is this normal for him to act like this? It's like we have a two faced relationship