Responses
I think it has a lot to do with their social standing, as the heroine said to her sister, she "found someone who thinks she is admirable" she does love s*x but she still did not realize that deep inside she is traumatized by that. I think Akuya respects that she had to do it to survive, as a poor person, pride doesn't fill your stomach, so she doesn't pray on her past, how could a rich noble tell someone "why you did you do it" on a moral level, she never seduced if not for survival and i think Akuya just thinks she is no morally superior person to say something.
As much as I love how wholesome their dynamic is, theres just some chapters that put me off. Especially the scene where she had to give herself to random men just to escape and the villainess noticing the suspicious body fluids afterwards. I understand the villainess is a good person, but I think the villainess shouldn't just accept such things easily. And it also left a bad taste since the next chapters completely goes on forward without mentioning it ever again.