Why do women like to drive themselves crazy with theatrics??

I'm seeing this girl and we get along well and enjoy one another's company... We both have children from a previous marriage and I want to take things slow....and not jump in head first.....I've told her this.... Here's what she messaged to me tonight (we're going to a fancy masquerade ball soon):

"So I was thinking about why am I so anxious about going to the masquerade or not as I usually don't get anxious about anything. I think it's because in my mind it would be a fun and special getaway for a couple. I know that you are not ready for anything more than just seeing each other and still seek attention from other women. So it makes me feel like we are going but as friends who occasionally sleep together and I'm not ok with that. I thought I would be, but I'm not. I'm a great person with a lot to offer the right person and I deserve to be with someone who actually wants to know me and be with me. I feel that sometimes you are seeing me until someone in your eyes is better comes along. You were right about me being conservative. If conservative means being passionate and giving the person I am with 100%."

(and here I thought she was acting strange and irritated because her dress she ordered hasn't shown up yet)

*women of similar worlds.....please explain to me why you think this way??*