Yes, Ti is an external IE, more explicit than Fi, able to express the why's. This is where I see Ti in chips.
You in comparison to her sound more vague, less clear, less explicit, less consistent in expressing your thoughts overall. You are somehow rambling, the impression of which I never get from her.
Note this is my Ti ego POV

You may not sound vague to some other people. But I find it relevant for typing her.
Why don't you define Fi a bit more clearly than this. From the viewpoint of you as EII. It may help chips.