Mitsuhide lacks a sacred treasure of her own and Nobunaga uses it often to end 
arguments with her.  The jealousy in Mitsuhide is growing and her hatred of 
Nobunaga, too.
Then you should just tell her.
De ser así, debería decírselo.
De ser así, deberías decírselo.
Então você devia falar isso a ela.