Err...Arjun did accept himself that Ovi's baby was his 😔. He said in an episode when Ovi was sleeping with PAri, that I can't even tell you, Ovi that "hamare baby" is dead (that is proof enough that he fathered a child with Ovi)...well, that was the first time Arjun looked with guilty face at Ovi tooo...now of course, no amount of reason or proof can convince you, if you can't accept taht Arjun inspite of "loving' Purvi can sleep with some one else, that is a different issue altogether 😔