since forever sucked back into

[frindle]

Hello. I don't exactly follow the underlined sentence below.
Does it mean Kim couldn't get out of her super huge family since long before?
Please help!!! Thank you.



School's out and I'm waiting for Kim when my phone bleeps. Can't cum shopping. Gran sick. Soz. So I'm stuck here on the High Street on my own, my best friend since forever sucked back into her super huge family.

[Rover_KE]

'My best friend since forever' is teenager-speak for 'Kim has been my best friend for as long as I can remember' and Kim has had to break her date for a shopping expedition in order to fulfil a family responsibility - taking care of her sick grandmother.

Rover