The ability to date girlfriends, first introduced in Grand Theft Auto: San Andreas, returns in Grand Theft Auto IV.
It's now possible to see your 'score' before the date is finished - after you exit the restaurant/club, access the Start-menu, and check your progress in 'Player'.
You can normally go for some action afterwards if your score with the girl is higher than 80% (check your stats when parked in car outside your girlfriend's house).
Any special ability gained through dating is only available to use one time per game day.
She holds traditional values, and according to Patrick, "she won't put out".
Despite this, the player is still given the option to try and join Kate inside.