Sai tried to get her son back, she even went to CN to be with him and change his mind but vinu made her angel still she tried to stay in CN to be with him. Ashwini and Pakhi continuously tortured her still she stayed in CN for vinu, but virat with his paagalpan ruined everything.
After all this how a girl like sai will stay in CN or try to change vinu’s mind if vinu himself asked to fix their family. Sai is ready for co parenting too but virat has no patience to give some time and fix things. Marrying someone without love is not ok to me too but virat left her no option and she is not happy too with her decisions.
Pakhi already decided to leave CN, but virat with his anger issues ruined everything and as I mentioned a selfish lady like Pakhi will once again grab this opportunity and will be back in his life again. That’s why I mentioned that line which suits very well to both.
sai was calm and composed but virat with his actions made her take those decisions IMO.