Yeah, this is a big NO!
I have a feeling the mom knows that her daughter knew the guy, also has feelings for him and she decided to steal him away.
But Rosa doesn't seem to even remember him...Poor Yeonwu lol I do get the vibes though about the mother having some sort of rivalry against her though...Like the way she treats her at times is truly questionable for a mother...
Yeah, this is a big NO!