So basically I was talking with this chick and there were points in the conversation where I fucked up and could have said better things, but I'm not here to ask you about those. I read this chick almost like a book, but there was one thing that I didn't get it, on the middle of the conversation, out of the blue, she says this:

http://i.imgur.com/5Lvi1sq.jpg

Any idea how should I have better responded to? and what does this mean

Sorry for any mistakes, thanks