Wow, the situation is so interesting that all you need now is some big traumatic disaster to happen (e.g. someone grabs Puppetrina from you and rips her head off), you go crazy for a while, and then slowly recover and find a way of talking without her, and voila, there's a movie plot which you could sell to some Hollywood producer!
Of course if you want to sell it on the art circuit, it would be better if Puppetrina were rersurrected after the decapitation and rebuilt by a mute ventroloquist whose own puppet, Archie, then falls in love with Puppetrina while she is in recovery; and the only way in which things can work out for the relationship between the puppets is for you and the ventreloquist to get married. (I kind of like that outcome better, but I guess I am weird.)
OK, I got seriously off-topic there. What I wanted to say was that I think this is simply an unusual version of the preference that most Aspies have, to communicate within a medium that shields them from relationship complexities and confusing social signals that cause stress. Many Aspies prefer Internet communication to face-to-face communication, because it reduces the amount of information which they are required to interpret to a single data channel. I am fairly good at reading non-verbal signals -- almost as good as most neurotypical people, I would say -- but not in every situation, and absolutely not when I am stressed. There have been times (even at work) where I have struggled to cope with facial expressions, body language, the memory of past experiences and unresolved conflict with the same people, tone of voice, the fact that there are four stressed people at the table, interruptions and phone calls, not to mention actual sensory overload (I have hyperacusis at the moment), and I have unwittingly put my fingers into my ears and closed my eyes whilst saying my bit in the meeting.
On top of all that, many Aspies are emotionally extremely sensitive. (In fact, in my experience, even those who appear to be emotionally "thick-skinned" have put up an emotional shield, but are nevertheless pretty sensitive behind it all.) Being so sensitive, then, it makes sense that such a person would want to be at a safe emotional distance whilst nevertheless craving interpersonal affirmation.
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When I must wait in a queue, I dance. Classified as an aspie with ADHD on 31 March 2009 at the age of 43.