It's normal for Arjun to soften up. He never wished for Ovi's ill, i mean, he is her "childhood friend" . He just never loved her. He has space in his heart for a love-Purvi, and a friend-Ovi. Ovi can't pass the level from friend to love, he's made that clear. Even if Ovi does reach beyond the fried level, she will always be the second love.
And well, the guys heartbroken, he needs support. Purvi, as hard as it is for the girl- has so much on her plate, and is trying to avoid Arjun to her best ability, but always thinks of him. As for Arjun, even if he's married now, the only name he connects himself with is Purvi.
I also see a Arvi reunion- this is either the positive side in me or the fan in me that's saying that the two will reunite .