The Forgotten Potter Twin

The Potter family had twins that 31st July. Colin Evan Potter and Harry James Potter. After Voldemort attacked, Lily and James survived and Colin was mistakenly made The Boy Who Lived. Harry is ignored by his whole family as Colin is spoiled rotten.

Harry runs away from his sad life and meets Allyssa Rose, a kind hearted lady who raises him like a son. Harry is taught right from wrong and many lessons by Allyssa, while Colin is raised spoilt and becomes an arrogant brat.

What will happen when the twins reunite at Hogwarts?

And can Harry forgive his parents for forgetting him?