Louise is Louise Pentland. She used to go by the name Sprinkle of Glitter but moved away from that name about 4 years ago to post more adult content (her audience was a lot younger and she didn’t really know how to be relevant to them as she wasn’t a 20-something anymore).
At some point BM2 was asked to interview her (I want to say it was for Mumsnet but I’m not 100%) and they became “friends”. BM2 basically made a fool of herself and fangirled a lot (they may possibly have met at a meet n greet before this but I can’t remember the full story).
Anyway, Louise was at a point of trying to transition to be a Mummy Vlogger rather than appealing to the same audience as Zoella. So the Louise and Zoella BFF vids disappeared and the Louise, BM2, Mrs Meldrum grouping got a few outings. Louise and BM2 live fairly close so they did a fair few tat shopping vids, but Louise is now trying to move into traditional media (TV predominantly by the looks of it) so instead of tagging BM2 in anything and everything, she tags the likes of Angela Scanlon (if that’s her name!) leaving BM2 with nothing but month old prawn crackers to dance around as she slowly goes insane that her BFF isn’t interested.