During his fifth year Harry is tired of the chasers berating him. When one of them hears his rant they feel bad and decide to make it up to him.
Appoline Delacour and her husband betrayed Harry Potter, this is her punishment.
Harry is in his seventh year Charms class with Hermione when things begin to heat up.
It's the Gryffindor/Hufflepuff sixth year poker night and Harry decides do spice things up with a little bet when things begin to look good.
Harry get's the prefect badge of his fifth year and his Mother shows him part of a prefect's duty. AU universe, no Voldemort.
At the apparent 'wedding' of Bill Weasley and Fleur Delacour secrets are revealed, relationships exposed, and wars ended. What's left to do but sit back and watch the fireworks.