I think I must be the only one who doesn't have a problem with Amira wanting to have Yasmin return to live with her. I'm surprised that so many others are so adamant that this is terrible and a Bad Thing for Yasmin. I'd feel a damn sight more sorry for Yasmin if Amira had decided to give up full custody to Chryed so she could swan off and start afresh with no baggage.
We don't know how long Chryed have had Yasmin with them full-time because as per usual it hasn't been dealt with on screen. Certainly we've had scripts earlier in the year which indicated that Chryed were babysitting rather than her living with them. Also, Amira didn't disappear without a trace - she's been travelling but keeping in touch, there was never a hint that she was no longer on the scene and no longer interested. I'm not a fan of Amira but I can't say that, if it has to come down to a choice, that she is less fit than Chryed to be Yasmin's main caregiver.
Should she have taken off for weeks without Yasmin? Ideally no, but the past couple of years damaged her badly...she needed time and space to get herself on track and I take the view that in the long run this break will make her a better mother and a better person. She's now found someone she can love who loves her in return, someone with whom she can build a life and who's willing to embrace her and her daughter; a year ago she would never have imagined such a future could be possible. Yes, it's a stretch that Amira has found someone she wishes to settle down with so quickly, but in the grand scheme of unbelievable Chryed plot contrivances, I think we have bigger fish to fry than the ex-wife's speed dating technique, or worrying that the fiance may well turn out to be a paedophile or serial killer off-screen.
There's been nothing on screen to suggest that Amira doesn't love Yasmin as much as Syed and Christian do, that she is less capable of being a good parent, or that she had ever relinquished custody of her. The interviews we've had (no actual on-screen explanation, heaven forbid) have indicated Chryed knew from the outset that Yasmin living with them full-time was only a temporary arrangement. It's horrible that it comes down to an either/or custody situation, but this happens when parents separate and then move on. So tough, but it's perfectly normal for Amira to want to grab her newfound happiness with both hands, to move to start her new life and for her daughter to be a part of that. Amira was clearly sensitive to the fact that this was going to be a huge blow to Syed/ Chryed, I thought she came across reasonably enough in the circumstances.