What does it mean when a girl talks about her ex every now and then?

sincerelyedward
as the title asks. what does this mean? would this woman still have feelings for her ex? by her talking about him, would this mean that she has set a standard of what she is looking for, off of him?

the background to this, is that I have been friends with this woman for a little while. and though I have interest in her, I'm hesitant of making my feelings available because I'm not sure if I'm even her "type" at all. nor do I think she sees me as more than a friend. at my age, becoming friends is the norm as jumping into things isn't plausible.

thoughts?
What does it mean when a girl talks about her ex every now and then?
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