He's in love with his own life right now. He's got a good job, a happily reunited family, his best friend, and his new friend.
All these posts debating who he's in love with seem too assumptive at the moment. He cares about both the women but right now, love seems to be the last thing on his mind. He's finally got himself in a career that he's happy with and is enjoying it. He's patched up with his stepmother and accepted her wholeheartedly.
If anything, he's just begun to care about Maya as a friend at this point. Yeah he wrote her name in the sand with his family while Saanjh's was written separately but with the writers giving us ZERO input into what's going on in his brain, I'm not even going to bother making much of it.
I don't pick up him being in love with anyone right now.
My only criticism of Arjun is that he's the most aloof character I have ever seen. The signs of who's in love with him are in his face and he's all smiles and la-dee-daa about it. Dude, not even the most frigid guy I know missed the signs. We have seen very little of what goes on in his head with most monologues being from Maya or Saanjh.
Seriously writers, pull up the big pants and get to work with him. We're hitting the 60th episode on Monday and I still haven't figured out his character which is raising multiple red flags for me. Chop chop!