The first type of relationship is any that Niko has with various females he encounters.These relationships take on a more light-hearted and pseudo-romantic tone and are completely optional for the most part.The relationship aspect of Grand Theft Auto IV is perhaps one of the most nebulous areas of this epic game.
The game is played from a third-person perspective and its world is navigated on-foot or by vehicle.
In fact, without building up relationships with myriad characters in the game, you're going to miss out on a lot of what the game intends for you to see.
There are two different kinds of primary relationships in the game.
The other three girlfriends are met online from the dating websites, as from the amusing interactions between Niko Bellic and the women he dates, there can be several in-game benefits to starting a relationship with any of the datable characters.
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.