#and roy answers with something completely stupid and inane like 'well what if she wakes up with a nosebleed?'

[lunar-years]

Ok but how did Phoebe contact Jamie to invite him to uncles day? Did she email him? Slide into his dms using her hot moms Twitter account? Accost him in the Richmond parking lot? I need answers

I truly think Jamie has met Phoebe before (because of course he has, he hangs out with Roy all the time. Roy is constantly talking about him to the point where Phoebe has no choice but to assume Roy would want him there with him on the best holiday of the year). And therefore he has at least briefly met Phoebe's mother in past.

So probably, Roy gave Jamie's number to his sister just in case, because I like to think Roy gets paranoid over insane scenarios he's made up in his head and convinced himself could absolutely definitely happen, and Jamie is low-key his emergency contact now, and it spirals from there. Roy's brain at 3:00 a.m. while he’s getting ready to go over to Jamie's house, running non-stop like: "but what if my sister needs to call me about something urgent that's happened to Phoebe but I'm unreachable because my knee gave out while Jamie and I were jogging by the Thames and when I went down my phone flew out of my pocket and shattered along the concrete and when Jamie was helping me up he accidentally kicked it into the water? So then when she can’t reach me my sister tries to call Keeley, but of course Keeley's not up because it's 5:00 a.m. so she also misses this important call...but wait!...who do I always happen to be with who also happens to be attached at the hip to his cell phone and would never ever miss a call?" and that is how he gruffly slides his sister Jamie Tartt's cell phone number written on a slip of paper in his terrible chicken-scratch and tells her to put it in her phone contact list strictly for emergencies.

Roy's sister of course recognizes the power she wields here and abuses it immediately. amen.