I've often wondered whether there is any point thinking about
what sort of character traits you would like to have in your future
partner, as I think that most probably if you met him/her, it's
going to turn out to be rather different from what you
imagined.
In any case, I don't really wish for anything except that my
partner would be willing to accept who I am and tolerate every flaw
and bad habit I have. That's the best that I can hope for, in my
opinion.