The boy said, what do you mean I'm just saying?

The boy said, then I'll just say it casually, which has two meanings. One is what I told you, and you didn't take it seriously. He's angry, and it's not easy to be angry with you, and you ask about it again. Boys have to say it in order not to quarrel with you, so you just treat me as an expression. The other is what the boy promised you in advance, or what he promised you, but now there is no way to realize it. In order to eliminate this embarrassment, I have to say that you are just saying.