Seriously, I wouldn't see it as a concern. The particularly complex characters create mental images, with multiple aspects; and that very complexity is part of what makes them such a draw, after all. One can have an emotional crush, a physical crush, fantasies of sharing adventures, a wish for a familial relationship, a strong desire just to hang out and be friends -- any or all of them at different times, changing according to our own changing internal landscape.

If you go right into the visceral level of our need for stories and storytelling -- we have always had this need, for beings of imagination with whom we can have these multilayered internal relationships. That's why we create them, devote so much time and energy to them, maintain them. We've been doing it for millenia, using whatever media we had available.

< / end philosophical ramblings . . .