Isaac has known Jackie ever since they were born which isn't an understatement since Isaac and Jakie were literally born on the same day at the same time and for that reason, they celebrate their birthday together and because they have known each other for so long, they are very intimate with each other. Isaac and Jackie would hug, cuddle, and would do certain things that only couples do. When Isaac and Jackie were younger, they would kiss occasionally but they stopped kissing as they got older.