Actor.isDating() returns bool

Check if the actor is in a relationship with the player.
Alternatively, if the Actor is Player then it checks whether the player is currently in a relationship at all.

EXAMPLE:
    If Player.isDating()
        "I'm dating someone ..."
        If John.isDating()
            "And <John.name> is my <John.boyfriend_or_girlfriend>."
        Else
            "But my significant other isn't <John.name>."
        Endif
    Endif