U have to understand that she currently has no family aside from Takeyori and he is paying for her Mother's exirbitant healthcare.
She herself is financially dependent on him and she is attached to him.
For women, emotional satisfaction holds great importance. She is willing to take what she can since she feels their lack of sex is her fault.
But even tho she's financially dependent on him once they divorce half of his salary goes out to her, and with her salary it'd be more than enough to aid two people(jun and her mom) also idk if Japanese health care is as expensive as it is in the us so that'd also make a difference
jun is honest about what she wants,she has always communicated with takeyori about wanting children but he never reciprocated her feelings.
she's a good looking middle aged woman, and her husband hadn't been able to get it up with her for many years so ofc she would question her sex appeal and try to find ways to make him look at her with lust, just like how he used to when they were dating.
but it just make me scream like how could you be with someone that doesn't match your energy!? they hadn't had sex for fucking five years!! i feel so bad for the majority of married woman with sexless lives that made them be insecure and try to hide their sexuality from their husbands.:(
this is a real life scenario and that's why my blood is boiling, i hope she files up divorce papers.
even if he's kind and hardworking HE IS ACTING LIKE A FRIEND NOT A HUSBAND,KEEP THAT IN MIND.