The most important thing is, she fine asf. I don't think she gonna act like a spoiled brat once she sees the MC's all about that billionaire playboy life, but the decisive
argument on why she should rekindle her relationship with him is bellow his belt... all 10/12 inches of it and all them billion$$ he has in the bank. I guarantee she gonna start calling him "daddy" and act like a good girl real soon after she sees the light
and feels his dick reach the bottom of her pussy.
Well, if it ain't broke, don't fix it, as they say. A good dicking is said to do wonders for curing women's bitchiness. The MC needs to show her all the
love she missed on so far, and they should be all good.
I'd say all 4 of your points sound like good scenarios on how the dev should write their build up in the next updates, and I agree. There's too much fucking for the heck of it and too lil development in the story department.
The women are all gorgeous and perfect 10s, there's no denying that, but putting a lil more emphasis on the story from time to time would be a welcome change.