Heroine is very prim and proper, wants a non-scandalous husband so that her child will never have their paternity questioned (like she does). Historical romance.

[Vasudha]

I think the heroine is blonde and the result of her mother's affair with a Russian (?) but I'm not too sure. She has also spent her life shying away from her passionate nature.

[Brenna]

When did you read it?

And just to clarify, when you said you are not sure, were you just referring to the nationality of the mother’s lover? Or were you saying the heroine might not be the product of the affair?

Could it be Say No to the Duke by Eloisa James?

[Vasudha]

Hey Brenna i read it back in 2017. I'm not sure about the mother's Russian lover. I'm sure she's blonde.