I knew this would happen because of the situations they both have been in. deep down an obsession as big as Skylar had would never simply have disappeared after gaining a "boyfriend". And cirrus is too possessive because all the people around him have betrayed him in some way or another.
I can't blame both parties because they both need professional help.
I feel as if the best way to end of their relationship is for them to either not get together but instead stick as friends who build eachother up , or they both seek the help they need and get together when they're older.