In The Name Of Love (Dramione, Blinny, Thuna & Ravender)

3 months after the war, Ron proposed to Hermione, she accepted. They had been together and love came upon them until one day everything changed. After Ron came home from work. She had noticed perfume and lipstick mark on his shirt and his cheek. She began to believe him at first, as she always dream about her upcoming wedding, until her mind thinks he was lying.

But not only Hermione, Ginny & Luna witnessed Ron went to the nightclub with a woman named Lavender Brown. They realized he was cheating on Hermione with her.

Until a week later... the girls decided to investigate Ron's whereabouts where he met Lavender again.

Disclaimed: I don't own these characters, they belong to the one and only J.K. Rowling.