Looking for a Manwha

Hi guys.
I’m looking for a manwha I don’t really remember the story line or the name but I remember the second couple; she was like a princess or daughter of a duke and her father offer her to another guy ( he tried to sa her so that shell have his kid) and she escaped and she saw the guy (I think his in love with her and has glasses) and she offers herself to him I’m not sure if his the second prince or something like that.

Thanks for the help and sorry for the vague info.