I never understand people that says fame changed CL.

Fame is not what changed her, it's age. 

Want a 23-years-old woman to act excactly the same as an 18-years-old teenager? That simply is not happening. A lot has happened to her, stuff that no people would understand unless you are her. She has had her fair share of love, hate, ups and downs, she has gotten wiser, she expericed life, she has matured. She HAS changed, that much is clear, but she has changed into an awesome woman, a person worth admiring and be looked up to. 

To those that say you 'miss the old CL', I'm sorry to inform you, but Neverland does not exist. Please just learn to move on. Because, if you can't see that this wonderful woman is still the same badass, confident, charismatic, sweet, loving, playful, quirky and humble teenager that you have claimed to love and miss, you are just labelling those qualities to a certain image that you have, not the actual person behind it.