It looks like Mom has figured it all out now and the huge mistake.
its not her fault [ maybe a bit] , she knew nothing about jina/marriage/cheating and that her daughter loved dansu at the end ... [ FL only told her dad = the most inappropriate person]
i guess grandma [FLs] is gone .... FLs parents and specially her mom start to realize the mistake they did to push their daughter for marry the crap .... but gonghui is the main responsible for that choice !!! .... jina is making everything possible to get back mingi , she is having a date on purpose and made it so clear [her plan] , so he can be there and get really jealous .... and gonghui is still driving her broom over the clouds ... singing songs for MOMO ....