Transition the user a real person who is similar to the bot. The users can decide how fast they want to take it into a real relationship and what the boundaries are. The bots could even help facilitate this since they'd know so much about the users already.
Of course this assumes it can all be done with a reasonable level of privacy. Sadly, probably not for all the reasons the article gives. Maybe the future really will be like Demolition Man. Terrible.