Let's look at this from the mathematical perspective, how I many times look at life:
-How pretty is she compared to others girls, other grils in your life, and how attractive is she to you?
-How pretty are her feet compared to other girls?
-How accepting are the girls in your life to your foot fetish AND tickle fetish, and they not only let you indulge, but can talk to you about it?
-How ticklish are the other girls in your life, and how pretty are their laughs? (they may be ticklish, but scream like a banshee, and you may like to hear a real laugh, for example.)
-How handsome are YOU, and do other girls want you, are there other options out there for you?
How is she on other things in life?
I saved the most important question for last. But the others are there to put all this in perspective.
Basically, you may be in a "the grass is always greener" mode, and will look back and spend your whole life kicking yourself for giving her up over something that may seem small looking back.
Ou may end up wih someone who is wonderfully ticklish, but is such a mean bitch, looks down on you, etc. etc. you may NOT WANT to ever tickle her, because you're to busy being pissed off.
You may find someone who IS ticklish, but never LETS you tickle her.
As someone who went through a bitter divorce, and regretting never being loved in life, there is SO much more to any long term healthy relationship than one sexual interest.
Yes, it's DAMN important, and if the other things suit you and complete you, trust me, the tickling will be even better, but if you end up with someone later who judges you negatively because you have a fetish, as many guys and girls here have the unfortune of happening to them, life will truly suck. If you have someone who doesn't respect you, dosn't like your family, your friends, is controlling, etc. etc.
So before you show her the door, really evaluate your life and see if you're not making one massive mistake.
And to those whom said he SHOULDN'T date her, elaborate - how so? What are your experiences, was it she just wasn't ticklish, or where there other issues that melded with that one?