You took a risk by asking her to come it paid off, you took a risk on the book, it did not pay off.
Actually, I did not ask her on the walk. It went like this. When we first talked I brought up taking D to dinner. When I brought this up I did say "you are welcome to joins us as well."
The dinner idea fell through because of the dog, so I said "How about I stop by and take her for a walk." This is when she said "Sure, I'll meet you at the park, I'd love to see the dog." As I mentioned before, she kind of back pedaled here a bit, realizing what she just did.
It is tough to say how she interpreted it, I know she is probably not analyzing it like I am, but technically, she invited herself on the walk!
BITS
Happiness is not something ready made. It comes from your own actions.