Uhm...the first two were alright, I guess...I don't know about the last one.
She gave you an IOI. Thus, an IOI begets an IOI. But first, you have to give
a small "pebble," and then give an IOI back. Giving the pebble is a small routine
that I do to balance out the IOI to make it seem like I'm not REALLY interested
in her, but I'm getting there.
So try this:
Her: You wish you had girls stalking you! blah blah blah.
You: Oh, really? How do you explain me seeing you outside of my window
last night! I'll let you stalk me, though. I guess you seem alright

.
That's a pretty good reply.