... I am attempting to cheat on my RPG girlfriend. BUT HE'S ADORKABLE!
Well, and as I said before, him being so tied into the plot means that I do see him as much more of a person than Leliana, who only exists when I pay attention to her. I want to talk to him about the things that are happening to him [again no spoilers plz] (and shake him and scold him and comfort him and... oops).
Many people other than myself have commented on the limitations of "buy affection with presents" so I don't really need to get into it here. As a visual novel fan I obviously like being able to state my choices in dialog, but affection could be recorded in other ways through RPG gameplay mechanics. Companions look pleased when selected and sulky when left behind; keeping someone in your party could earn you a trickle of points over time. Upgrading someone's equipment to better stats also shows you care! And getting them KOed in combat could lose you points... surely you should protect the ones you love?