Dating these girls is not a requirement to attain the 100% game completion stat, however each has a special ability that is unlocked once they like you enough.
This feature is available after the “Out of the Closet” mission in Brucie's mission line.
After requesting a date, you'll have to wait awhile (a week or more) for a reply. Reply to the e-mail to trigger the appointment, and be sure to show up on time.
After the initial date, you can then collect the girl's phone number so you can call and set up additional dates.
The ability to date girlfriends, introduced in Grand Theft Auto: San Andreas, returns in Grand Theft Auto IV.
Like in GTA San Andreas, two of the girlfriends are introduced during the storyline.
Conversely though, Niko's choice of wardrobe and vehicular transport will also affect whether or not his date has a good time.
Putting in a little bit of time to raise the fondness of the girlfriends can unlock their "special abilities"; these can help in particularly difficult missions late in the game.She likes Niko wearing clothes from the Russian Shop; she thinks clothes bought at Perseus make Niko look like a criminal.Michelle prefers variety, expressing interest in new cars and pointing out if Niko is wearing the same outfit or takes her to the same place constantly (though her reaction to him wearing the same outfit is not actually negative as she always adds "I like it").Michelle is a character in the HD Universe and Niko Bellic's first girlfriend in Grand Theft Auto IV.He is introduced to her during the mission "Three's a Crowd" by Mallorie Bardas, who urges the two of them to date, due to Niko having just arrived in the city and not knowing anybody. Mallorie sets the both of them up and they decide to begin dating.As you progress through the story, Niko will be able to wine and dine with a number of Liberty City women.