You missed the point, the power play that went there.
Her throwing him was basically her last attempt at making him feel like he is inferrior to her. Rage and hatred at herself and him, the littereal son of the person she looks up to, being a reminder.
Him pushing her away but then diciding to engage anyway was basiacally him telling her he won, that he saw right through her, that when it came down to it, she still cant stand up for herself and is indeed inferrior to him. But this is also in a way him forgiving her. So reconciliation in a twisted way from both parts. The last blow from him was ofc him telling her that it is actually her mother who despite all was superior compared to his mom Arisa idolizes so much, who threw herself at other men, getting disowned even, due to her inferriority complex. So his mom aint really that what Arisa thinks and that Arisa should start working on herself
P.S.: also her giving in into the physicality was in a twisted way of her "absorbing" him (instead of his mom, so the aunt), his superiority, the being that she wants to be but can't
Just wanted to say, that I came back to this and I get it now. I think you did a really good job explaining it!! Before I wasn’t a fan of the sex, but now I understand why it was included. Really wanted to thank you since your explanation really stuck with me :3
It was so good but nearing the end, it kinda trailed off and just got bad. It sucks because it had so much potential but then nearing the end, it just got ruined. I do like how he story explores the mc’s relationship with her mom and aunt, and how she views them. But the sex was just so random and it just ruined the story for me. Plus. I’m not a fan of cousins fucking, kinda weird :/