I suspect this whole Indhu track is a lead-up to a second split between Shanthi and Karthik.
Who knows, maybe Shanthi and Karthik will divorce. And then Shanthi will marry the most eligible bachelor in town, who's been jilted by his girlfriend ... (OK, OK, I am ducking; I expect a lot of bricks coming my way; just trying to introduce some humour this weekend 😃