In love with a fictional character?

Originally Posted by Winehurst

... I have never ... had a relationship with a girl or even a boy
...
I'm basing all this on logical reasoning.

Therein lies your problem and the reason why Alice's argument is far more valid than yours ever will be.
You see, it's perfectly natural to reason through photosynthesis, cellular respiration, nuclear fusion and artificial insemination - not love. Scientific concepts can be reasoned through but love needs to be lived through to be understood. One simply needs to accept this and trust the wisdom and life experience of older people.
I sympathize with you, good sir. I, too, have no experience with love or romantic involvements, but I understand that I cannot discuss either until I actually experience them.

On the topic at hand ... I can certainly say I've been attached to a fictional characters. But love ... pfft. The very idea seems too ridiculous to discuss.
It's rather normal, me thinks, to be attached to a well written chracter. I found myself identifying and relating to Anil from Oondaatje's Anil's Ghost. I will admit I've felt a certain emotional attachment to her, but I consider that to be a sign of great literature, not of my flawed outlook on life.

How ya doing, buddy?