Hopefully she meets you at that spot. I probably wouldn't because I'd be taken aback that I asked a number and gave dudntguce it to me and didn't ask mine (name or number). In my experience when guys don't give true phone number is because they are hiding something (marrried or live with someone and want to be discreet). I had a guy asking my number but not giving his, sure enough he wanted to keep it discreet. Hope your meeting her second time and it works out