This is a summary for the movie, "Eva & Adam - fyra födelsedagar och ett fiasko" (Four Birthday's and a Fiasco".)

Can love last forever? Eva and Adam have been "going together" for
three years now. They are 13, but the 14 birthday is just around the
corner. At that age, three years seems like an eternity, and in many
ways they are no different from other couples who have been together
for a long time. Their schoo friends call them "Mr and Mrs
Kieslowski". Eva notices that she doesn't get butterflies in her
tummy any more when she kisses Adam. Is it the end of their love? Eva
decides to finish with Adam. He is devastated, but doesn't show it,
and Eva is quite glad at first. But when she finds out that Adam
is "going" with the step-sister of her best friend, she realises she
has made the biggest mistake of her life. Is it too late to get Adam
back again? The great fiasco happens at a music show featuring both
Eva and her rival Petra – with Adam in the audience.Eva and Adam were
originally successful comic-strip figures. Books followed, as did a
television series that proved highly popular in Sweden. It was
accoladed as the best Scandinavian television series at the Nordic
Children's and Youth TV Festival. The reference to Four Weddings and
a Funeral is no coincidence – the plot develops in the course of four
utterly chaotic birthday parties and culminates in a fiasco with
catastrophic results.
http://www.luebeck.de/filmtage/01/program/filme1209.html