I think, ghum's dialogues aren't really major hints about the future tracks.
Yes, there's a hidden meaning behind some dialogues, for which analysing is good.
But, virat saying, meri aur vinu ki mumma ki anniversary is just because, he's a little hesitant to call her wife.
It's vankar's way of confusing the audience, creating curiosity and suspense.
So, that we keep hoping for something till the end.
Just like in surrogacy track, sai said, 'mujhe lagta hai, pakhi didi ki kokh mein humara ansh dala hi nahi gaya hai'.
And, savi in kankavli 'main unhein transfer lene bolungi'.
Surrogacy track is the best to learn the lesson.
The way Vankar created suspense with confusing dialogues and false precaps, are enough to make you understand their strategy.
There were too many hints, like pakhi looking Sad and confused with the pregnancy kit and people assumed that, she stole sai's pregnancy kit.
So, these are just subtle things to give people false hopes.
They know the fd is very calculative.
Virat and pakhi's marriage is very muchhh real.
People do get married to someone else in ITV and still reunite. It's a common thing.