Err... actually now that I think about it, you might wanna cross City Hall of that list. If I remember correctly the male lead has a fiance(arranged marriage for political reasons, I think) and the female lead is friends with a married guy and there's some jealousy from the male lead. But I don't remember the "rivals" having that much screen time or being that much of a threat. Anyways, I hate love triangles too, and I don't remember it at all as a love triangle type drama.
