I like journaling. It looks less weird and people don't have to wonder.
Sometimes I find journaling more soothing than to talk to someone. People always risk rejecting you, or not understanding you, or invalidating your feelings or situation. This doesn't help when you're suffering from the need of saying stuff to get it out of your chest. Doesn't help when you need to undo a knot of mixed emotions. Doesn't help when they don't know you enough, or don't know life enough, or aren't truly paying enough attention, to be of help, but insist that you make things too complicated "for no reason". There's always a reason. Journaling without censoring yourself can help you get to the core of that reason.
I have a therapist, but, as sad as it may sound, sometimes I feel smarter at it than she is. Of course it's my life, so I know it better.
On a casual level though, I do talk to inanimated objects. I thank stuff for working well when I'm on a rush. When my computer does something I didn't ask it to do, I'll often say "er... no" aloud. Or even say the whole situation "I didn't ask you to run that program.", or if something falls on the floor "Fine, fall off."
What you're talking about (LD) is of a different nature. Talking to prove yourself your own existance. It might be a sign of a need of some true companionship.