At the end of GTAIV I chose to kill Dimitri because otherwise Roman would die, and for some retarded reason they expect you to care about Kate. Personally I didn't see anything likeable about her besides her looks and all she did was make sarky comments about the fact you were a sociopathic killer until Pegorino AK-47s her face in. Then you have to do a whole mission about payback but what am I paying back? Most of the support characters were more likeable than Kate, hell, even the people you meet on the 'net were more likeable, but they expected you to care, even cry.
I didn't.
I didn't.