What does tell you tell you tell you mean?

He probably likes you, however he may just want to avoid hurting your feelings by telling you that he doesn't like you. From the information given, I would say he likes you...

He probably does care about you. But he just doesn't want to say it. He thinks it might sound cheesy, or he might even feel embarrassed.

Yep

It is the structure of the Universal Speech Outline and has been used in public speaking classes for decades. Tell them what you are going to tell them: Tell your audience the topic of your...

It means not to add any fluff to an answer or to change the answer. It means to tell the whole truth.