I broke it, so I'll fix it

Haley and Neville have been friends since first year and going out together for two years. But when something happens it goes downhill. What happens? Will they still be friends and together, or will they breakup and become the Golden Trio? (Peter never turned his back on the Potter's, Sirius was never in Azkaban, Snape gets along with her and the ministry believes her Voldemort is