Dunno, but her friends outing as being shallow on ch3 kinda sucks, and he's also defying his friend, seems like a 'only I know the right choice' kinda mindset, like on both sides the friends only care about sex, and mains are wanting more than that
It's understandable her friends view that she may put up with him if the sex is good, and his friend is concerned he's becoming too attached to something he shouldn't, but it still paints both parties as sleazy, even the redeeming boss gave poor advice
Relationships are meant to have a stable foundation, then things get added to them, not built from things being added, adding a child to a degrading relationship majority of the time ruins it
I'll admit as of ch3, it's better than "pure 0.01mm", and the main characters aren't detestable, though I wonder what their pasts are, is this their first relationship, what influences did they have growing up (everyone is products of their environment), were their parents divorced, do they have siblings, etc, usually family is the most concerned with relationships like these, because on the surface, and most of the time, they have no familial value, a sex friend won't come to your funeral