Is certainly a step foward seeing them working together like this, loving the scenes they have at the moment, I inferred from their phone conversation a sort of unspeakable attraction Sunny might secretly have for Kusum as he was asking her help without saying why, Kusum taking it to mean the familial tie with SC And later on he tells her he needs her with him in this. Now that seems to insinuate the forthcoming possibility of their relationship moving beyond mere level of friendly. Also a sense of sexual tension between them is apparent even if discreetly, though they seem at ease with each other, and without the camera or any music that normally spells things out for viewers, I think things are definitely shaping up if not slowly...
I hope things take a turn for them, SC love story cant be the only one happening in the show where you have other characters with presence, Sunny for example. You can't deny his charm...