The singer returned to Britain on Friday ahead of a concert to benefit victims and their families.
Another young fan, Lauren Thorpe, described Grande as an "absolute angel", and shared a photo of the pair hugging as she lay in her hospital bed.
"Jaden was just sat there watching TV and she walked in".More news: Cristiano Ronaldo speaks out on Real Madrid's move for David De Gea
When asked about the likelihood of prosecutions, the officer said: "Without going into each one on merit, I can't answer that".
Twenty-two people - many of them children - died in the blast, and close to 60 were injured.
Ariana Grande meets victims of the Manchester terror attack that ripped through her concert in May.
"We were the last room on the ward that she came to visit, so I think the excitement was building and building, and then she came skipping in".More news: Trump slams Iran in first foreign speech
He wrote: "This means more to us than all the awesome things people have done this week. when your daughter asks after her 2nd operation is ariana ok?"
At the time of getting her tickets Kym didn't realise how lucky she had been until she heard they had sold out in minutes, with Ticketmaster's website struggling under the weight of massive demand as 140,000 fans attempted to snap them up.
"When I rang Bryony she said it was awesome", said Kym. Those who were at Grande's May 22 concert when the suicide bombing took place were offered free tickets; the remainder went on sale for $52.
The attack by suicide bomber Salman Abedi on May 22 killed 22 people and wounded 116.More news: 3 ex-Penn State officials sent to jail in Sandusky scandal
All proceeds from the show will go toward the "We Love Manchester Emergency Fund", in partnership with the British Red Cross and Manchester City Council.
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