i had a couple of similar situations from girls i met off pof. my question to you is was the kiss a good one? open mouth tongue? or just a peck or was she a really bad kisser? i went on 3 dates with girls i met off pof, had great dates with all them. there was good conversation, lots of kino, little kisses here and there, had a lot of fun on the dates, but none of these 3 girls ever went out with me again. it all comes down to the kiss bro. if it was a crappy kiss, that should be a sign and means it was a fake kiss. she was trying to be polite to avoid confrontation. she's out on a first date with a strange guy she met on the internet. she has to have up her defenses. even if she did see her ex and it upset her, doesnt give her the excuse to blow you off. if you build up enough attraction, it wont matter. bottom line when women are attracted to you, they chase you. i would leave her a voicemail just calling to see whats up? and thats it, if and when you see her again the ex bf thing never happened. my guess is she wont call you back, you should move on regardless. its always to your advatage in any situation to date multiple women.