Yup, now I believe you're an ISFP.

As to your question as to what your dual is, it would be me (that is, of course, if you are an ISFP.)

But really, the dual for an ISFP is an ENTP (and I'm an ENTP). Dual relationships are simply the most comfortable and are the easiest to get along with. Duals don't attack you at your weak points, and enjoy your stong points. This is why when you have a friend who is a dual, it is harder to break the bonds between duals. Duals usually enjoy each others company and can have fun together.