I know she's an adult and she decide to broke up with him but she feeling hurt, I guess.
Maybe she thinks 'why he won't marry me after 7 years?'. Inside of her heart there's still feeling about him, I guess.
Not so strong, she's isn't fall in love with him anymore but they remains.
It's natural, she's really sensitive (take a look on her lyrics o_O) after only an year the scar isn't still heal but she's not 'BAAW NOW I SPEND MY DAYS EATING A LOT OF CHOCOLATE SITTING ON THE SOFA AND WATCHING ROMANTIC MOVIES' lol she's strong.
Anyway congrats to him
>_< I know I'm too romantic!