I know of numerous couples who have either met through games such as World of Warcraft, who spend a significant amount of time in the game together, or who use the game as a means to stay in contact when apart. In particular, I know of a happily married couple in which the husband is overseas in the military and his wife is in the States; they have weekly WoW dates arranged so that they can spend time together and have fun without worrying about all of the other things going on. In this case, their avatars are a somewhat-adequate substitution to themselves.