What a discussion here about TT āļø I'm just gonna say my 2 cents and that is that TA & T need to live together to work things out. A long separation will not make either of them realize their mistakes or learn how how to adapt to each other and it will only increase misunderstandings between them.
TA needs to go accept he's at fault and understand what he did wrong, which is all Thulasi wants. But she too needs to learn the things she did. We saw only from T's point of view what went wrong but TA got hurt by T's decisions as well. We can clearly see he was not happy to be separated from her and he just wanted her to understand his POV. He was wrong about his POV in regards to Charu/GW/Lavs but he was right in his POV about Puvi/Sudha.
Definitely TA's blunders was much more painful for T but both have this strange habit of understanding all others' problems and forgiving them. T was so quick to understand why Charu was acting the way she was and even felt sorry for her but she didn't understand TA when it came to his family not trusting him at Puvi's shop. TA also so quick to forgive his friends and family for their mistakes, but when T makes a mistake, he acts like she killed someone.
Both need to live together and learn to understand each other from their POVs so they can successfully move on in their lives together because in the end they both know and we viewers know TA & T are simply too unhappy without each other to be separated