WELL I LOVE ALL OF THIS, PIPPA ADORES HER, FULL STOP. god i love all of these options so let's blend some?? maybe they originally met because some dude double booked a tinder date and they're like "uh dude what the fuck" (pippa is pippa and so promptly made a joke about how it's fine, she's into poly, was this his plan all along?? while he stands there mortified his poor planning skills have bit him in the ass) and went their separate ways, but then ran into each other in some bar or store or somewhere marissa stuck out like a sore thumb and pippa approached her like "oh hey you're the girl i almost had a threesome with a month ago" and the rest is history?