This is ITV, so we know Tejo will recover, but IRL, it would be a real test of Fateh's patience.
Imagine a real life scenario where Tejo never recovers, and is literally unwilling to let Fateh go out of her sight for even a minute. F could do this caretaking job for a year, maybe even 2, but even the best folks' patience will run out at some point. And if you're staring at a future where you don't know how long it would take for her to heal, helplessness and frustration will consume the caretaker at some point, no matter how good hearted they are.
Not saying Gurpreet is right, but at a level (disclaimer that I watch UD on and off), her portrayal is very much like what an Indian saas would be! She's not cruel per se to her DIL, but the son's interests always comes first (unless he does something unpardonable like an EMA!)
This is where the contradiction is.
Fateh now is happy. Yes he's stressed and worried for Tejo, but if you've seen him post Tejo death, he was dead. Completely depressed. After so long he has felt actual happiness. And despite everything he will be happy with Tejo, even if she's to remain same. Now bringing your earlier point, yes generally people get exhausted. However there are rare people who love and cherish and make every sacrifice, fatejo are two such people. She forgot everything, including her name but remembered his. As Fateh said that Tejo is his world and he is tejo world.
And Gurpreet is ignoring that. She is completely blind that until now even during wedding rituals with Jasmine, the man was dead. Now he's happy. First time in 9-10 months.
Even during Ema she actually did not went against Fateh just Jasmine.
After the marriage she was actually jealous or angry about their happy relationship that he is paying her attention.
She's just š¤Æš¤Æš¤Æ