That's agreeable. their relationship started out shit. both were so flawed in their own ways. I dont hate either of them at the current time. because I've learned to move the fuck on from what has happened in the past and am putting my energy on the current people and their possible changes for the future. but with that being said, ch 70 was not rape.
Because Hyesung was embarrassed to say yes. Its confirmed in the next chapter. Not rape. Author says so, chapter says so. Keep going with your own interpretation I guess. Make another webtoon subplot altogether while you're at it. Post your work after you're done working on the narrative.

Dojin x Hyesung: Not consensual. Rape by both parties. No love involved, I have not seen valid example of either of them loving eachother. Just horny energy and a baby. This lack of consent was present in the ORIGINAL non-omegaverse manga, they HATED eachother. Both parties are guilty. Hyesung has raped Dojin once and used his money. Dojin has raped Hyesung more than three times. They have had consensual sex ONCE. You cannot hate Dojin or Hyesung without acknowledging eithers flaws, otherwise your arguement is invalid.
Dojun x Heesoo: Actual couple in love. Trust eachother, every single sex scene both wanted it. Valid reasons for being in love and getting together.