The Unforgiving Love ~ England x Reader

Your name was (Name) Jennings, the only daughter of the Jennings family, which was one of the richest family in London. You had a big brother, a little brother, and 2 cats named Salt and Pepper (because one of them was black and one of the, was white.... Not trying to be racist here) and you had a dog names Sebastian.

You were a Childish woman, you were 18 years old who is 149cm.
One day when you were sneakingly taking a walk at your 8-acre yard, you "accidentally" went in your neighbour's property, which was the Kirkland family's yard. You and their fathers were best friends since a child, until they got in a fight and broke each others arm, and they never got back together again.
Your father kept telling your family to never, to meet, look, or talk to them.
But, when you meet a boy, who had the same areas you, you promised him, that every night, they will meet at the tree that was in between their houses. It was too late when you knew that he was the son of the Kirkland family.