Hmmm...if I had to guess I would say that her heart had taken so many beatings that it became tender.
I've always wondered where jaywalking or jaywalk came from. I looked it up and found 2 different answers - which one do you think is the true origin?
First one:
http://www.todayifoundout.com/index.php ... aywalking/
Second:
Meaning: One who crosses the street in a reckless or illegal manner
History: Jay birds that traveled outside of the forest into urban areas often became confused and unaware of the potential dangers in the city – like traffic. Amused by their erratic behavior, people began using the term “Jaywalker” to describe someone who crossed the street irresponsibly.