Princess Erza Scarlet has a arranged Marriage with Prince Jellal but what happens when Erza falls for a knight?

Both Erza Scarlet and Gray Fullbuster are I guess enemies, sometimes friends, sometimes enemies I would say frenemies. Secretly dating, not even telling their own best friends. Erza hates Gray for him making him date him. But what if everything changes. Just one thing can change everything. Will Erza slowly fall in love with Gray? Or will she slowly fall in love for another?