But once you allow a guy to “whatever” you, control is lost and if you go along with his type of attitude you lose control of how you are dating him and he will be able to use you as he wants.
Maybe stop calling when he normally would, maybe hang out with his friends a little more than normal.

He puts you, and the relationship you have, on the back-burner of importance.

You DON’T want to be there, ever.

Stand up for your own self-importance and EXPECT him to treat you well. And if you don;’t get that treatment, put him off, put HIM on the BACK-BURNER of YOUR life and let him deal with that for a while.

Dating, even at it’s earliest stages, demands a certain amount of consideration and obligation from each person.
If that doesn’t happen in the early stages of dating then when do you expect it to happen?

Take control, don’t accept NO as an answer, or “whatever-whenever-wherever” to be used as a reason or suggestion of something to do.

A “date” is an “appointment”.

And if what you’re doing together isn’t a “date”, well then what is it?