I just read a thread on IMDB which i will quote here about Elin's reason for the reltionship
"I doubt Elin really loved Agnes. It was more like a rebellion- to be unique in this little village. To get out. Everyone here marks it out to be some great love, but i doubt it"
I'm sure this topic was bought up on this forum down the years. Its always been something that everytime i see the film the way Elin is always looking for new kicks and the fact Elin and Agnes barely spend that much time together. I know its a crime to bring this subject up but Does Elin really love Agnes????
In my Mind its just another one of her kicks. I do think she loves her as a friend but not in the way Agnes wants her too.