Hola people! 
Now that I've watched today's episode, here are my thoughts:
Jaggu and Sai are the cutest!
Come on makers, give us more of them! I demand it!
Coming to Savi's conversation with Isha, I didn't feel as disgusted, TBH.
Now hear me out before you all throw your chappals at me...

I felt it was more about her situation/fate than the person involved.
Yes, Rajat is proving himself to be a Dharti Pe Bojh ever since he got to know about Kiaan & Ashka's involvement in Isha's accident. But prior to that, we all agreed that despite his occasional outbursts, he is a good enough soul.
Every age has its own beauty and with that changes the definition of love. When we think about teenage love, it stems from purity - young souls who are engrossed in the idea of fairytales and believe that love is everlasting.
When we grow up a little, there comes passion; whereas with more time and maturity, faith and support take the center place.
Now, doesn't a person in her late 20s appreciate romantic outings? Of course she does. But at that very stage, we also want someone who's more of a companion to us, who knows the meaning of our silence and stands by us without uttering a word. If you ask me, my most essential criterion for an ideal partner is someone who would respect my parents.
Rajat did all of that. Even though they started off horribly, post SaRaj marriage, Rajat tried to take care of the Bhosales, supported Savi publicly and also proved he isn't that bad of a father to Sai. All these things must have given Savi some affirmation that they are a team.
It's not even about romance.
Sai is Savi's world. And when Rajat comes in, that world gets completed from all ends.
Now suddenly he's running after his ex who hasn't only used Rajat for her benefit but disrespected Savi on every single occasion. And Rajat is enabling her further with his forced DDP. So it's bound to hurt.
Savi has always been fearful that she can't have one moment of happiness.
And when she was finally getting it, everything went to dogs once again. So what could she really do? I feel her feelings for Rajat don't stem from the attraction/emotion you feel for an individual. Together they made a team which was pretty great and frankly, she can't replace him with someone else and have her happy family with Sai. Rajat is an essential part of her life now with all his vices and virtues. So I get why she's so heartbroken over his betrayal because once again, it's not about Rajat's love - it's about his commitment to their shared bond/world and he has failed there spectacularly.
Sorry for the long essay guys. But I really hope I've been able to convey what I was thinking. 
Considering Savi loved Ishan dearly, we have been waiting forever for her trauma to resurface so that Rajat slowly navigate through the difficulties and heal her along the process. So yeah, if they show Savi falling in love first, that'll be a disappointment for us.
...Rajat ka DPP sehana padega 