I have serious issues with the portrayal of Arjun in this show. For God's sake, he was one of the greatest valiant warriors of the era, not a stupid random guy with lots of jealousy and complex issues like second heroes of any other daily soap.đ It is okay that they want to show the lover side of Arjun and Uruvi being the first crush of his life, but it seems he does not have any other work other than following Uruvi here and there and trying to impress her. Still, I could work with it thinking that he is still almost a teenager and hence so desperate. đ But his attitude with Karna is unbearable. As per I think Karna and Arjun used to hold a great hostility against each-other, but that was born from the desire of competing each other. Both were great archers, same in capability and wanted to be the best, and always wanted a last test to prove themselves. This definitely does not mean that Arjun would take this whole competitive rivalry personally and insult Karna each and every moment by mocking about his origin and family occupation. Here he is such immature and blatantly jealous that he borrowed Karna as his charioteer to humiliate him in front of Uruvi and find some negative pleasure from this. It might be an act of any random third lover of love-triangle of any tv show, but it cannot be the character of Arjun. Moreover, I could not get why he is so adamant to keep up this rivalry to such extent that he does not hesitate to kill him just at this point. His dialogue about enmity ends with the death of enemy tells this clearly. Arjun had vowed to kill Karna after his participation in the humiliation of Draupadi. Before that he might have wanted to kill him when the enmity against Duryadhan was going to peek and Karna was one of the faces of the enemy camp. But right at this point, when even Jatugriha hasn't happened and Duryadhan and Pandavas are only having cold war and Karna has just come in the camp, this much hostility from Arjun is totally unnecessary. It seems he hates him as he being a sutaputra has the same capability as him, and wants to wipe out his existence. I cannot match this character with the picture of Arjun I have in my mind.
Arjun and Karna were one of the the great rivals of all time; and irony is that they had too many things in common. They were the eldest and youngest son of the same mother, and in their whole life unknowingly they complemented each other. It is not at all needed to show Arjun negatively to make Karna high in the eyes of audience. Each the characters have their own grace, own failures, that's why Mahabharata is an epic.
I hope Arjun grows mature when he faces the real struggles of life which is going to happen soon; and hope Draupadi's arrival will reduce this puppy-lover attitude as well.đ