i don't necessarily think louise and zoe grew apart because they tweet each other all the time and i'm sure they probably text here and there. they just have busy lives and plus louise lives far from them so they don't get to see each other as much and also louise is pregnant right now. so i'm sure they're still friends they just don't get to see each other very often which is okay.
I don’t doubt they are still friends but they are not close anymore. They have grown apart as they lead very different lives. The distance never stopped them before so that’s not an excuse. They weren’t even going to do a gift giving video last year until people kept asking and asking for it. Louise even said in a vlog a couple of weeks before December last year that they weren’t going to do one. So it’s obvious the viewer pressure got to them. I know they mentioned doing one this year when they were filming for Hello World but Zoe is doing that with Mark so no need to film another one with Louise when they aren’t that close anymore.