She Raised Her Ex-Boyfriend’s Niece Very Well

“Artea is my niece.”
“She’s also my niece.”
It is 100% correct to say that you should not have double in-laws. I was just trying to raise my niece.
“Bellona, Marry me.”
“What?”
“Isn’t this the best way for both of us to raise Artea?”
Suddenly, the contract marriage with my ex-boyfriend began. No way!
“My uncle loved my aunt so much that he asked her to marry him.”
“Aaaah, it’s romantic!”
But is it okay to lie to this extent? I did it?
“Wow, dancing with my aunt and uncle is pretty!”
“My aunt and uncle love each other so much, so they say I have to go out with them sometimes to go on dates!”
Thanks to my niece’s help, or rather, interference. Now I sleep in the same bed every day. Is this… right?
“Auntie can’t run away. If she does, my uncle will catch her.”
“Yes. I won’t let you go!”
It is clearly a contract marriage made with divorce in mind, but there is no way out.