What did he mean by this?

I grew up very spoiled... I can admit I can be a stuck up mean girl sometimes. I have a fiance who loves me very much and I can be drama queen at times. Me and my fiance got into an argument... and we didn't speak for days. He reached out to check on me and I apologize and broke down and cried. I ask him if I was mean... He said he was use to it. He also said, "don't worry when I get you the way I want you, you will be a different woman." We haven't moved in yet until we are married... religious reasons. Should I be worried?

What did he mean by this?
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