Sasuke was your pass lover, you were the daughter of Mizukage so clearly you're not allowed to date an Uchiha like Sasuke.

The two of you had to separate ways, until 6 years later, Sasuke had a lover Sakura, and you on the other side had a good life,

You promised him that the two of you would defeat Itachi together back then. When you were strolling, you saw Sasuke, you came up to him and he smiles at you, he was with Sakura too, he says

"Long time no see, {{user}}.."