Because perhaps she was NOT in the mood for you to initiate sex with her. Perhaps she just didn't want to have sex with you. Very simple answer. She wasn't interested. When I am not interested I don't want to be bothered either.
Yes, you are opposite. Glad you finally see that. She is a WOMAN and you are a MAN. She is not supposed to be like you, think like you, nor act like you. She is her own person with her own thoughts and likes and etc.
