My Two Cents
First off, I'm not going to tell you what to do, but I do have a few things that come to mind here. First, by her saying that you're more into tickling than you are in to her, she may feel as though your just in it for tickling. If you are in to her as a person, prove it to her, and not just in the bedroom. Secondly, because she wants you to quit coming to this site, she may feel like your just using this site to find fantasies to play out with her. I think many women have that feeling when their significant others look at any adult material.
I think most of all, you need to talk with her. Find out why she liked it in the beginning, and not now. (This makes me wonder if she just tolerated it in the beginning just because she knew you liked it.) Find out just what it is that she hates about tickling, and why she wants you to give it up. Find the true reasons she has. They may be completely selfish, but then again, you may find some ways you're lacking in making her happy. This may result in some soul searching for both of you.
There's my two cents.