What does “I’m not ready for a relationship” mean?

A girl I’ve known for 1 year now is an incredible person and we get along very well. When she got drunk she said “when I first met you I thought you just wanted to fuck me” and then proceeded to talk about her past trauma “being in an abusive relationship for 4 years and healing from it.” Then she proceeded to flirt with me but it never goes anywhere.

We have incredible chemistry and I’d like to take it to the next level. Is this a bad idea?