The love each other so much
But like, in a platonic way

Well, Jennie has a boyfriend whom she is very much in love with, and Simmer had a crush on Jennie, but later decided that they were okay with being just friends
And ended up with a crush on Alias

Simmer's crush on Jennie was short and sweet, but hot dang, is Simmer in love with Alias

They don't know how it happened
It just happened

I don't yet know how Alias feels about Simmer, though