My reasons:
1. Most people would quit YHM
2.Ishra haven't properly united yet, how can they separate.
3.This relationship was built on ruhi, even if it means going back to square one.
4. Bhalla s got ruhi s custody BECAUSE OF ISHITA. If ishita leaves, shashok if not Ashok shagun would report to court.
5.Umm, Ishra are in love by the way, one of them accepted it to themself, very fragile love if it can break so easily.
6.Raman and Shagun still despise eachother. As long as Shashok marriage is on and Raman isn't blinded by love for adi, ain't gonna happen.
7.When Ishita finds out about Ramans MU I doubt she would leave without a lecture and clearing everything, then I doubt Raman will let her go.
If anybody knows the song 'let her go', if Raman thinks Manshita is a thing, he we will try his best to let her go, When she stays, Raman will know Ishita is his only.
'Cause you only need the light when it's burning low
Only miss the sun when it starts to snow
Only know you love her when you let her go
Only know you've been high when you're feeling low
Only hate the road when you're missin' home
Only know you love her when you let her go
And you let her go
If you love something, let it free, if it comes back to you, it's yours.