I think I would have waited to know for a fact if she was a hooker or not.
Even if she was, apparently you guys were only hanging and having fun, so she wasn't wasting your time.
Also, its a law of nature that all girls hate all girls for no reason, you can't trust a girls opinon lol.
If a 7 was going for me (a 2), I think I would play things out a little longer.