There was wenrene fic. I don't remember much but I think Irene ran away from her house beacuse of engagemnt and due to heavy rain and snow stayed at Wendy's (stranger) house for three days or so. Then they fell in live. If anyone happens to know this, please tell. 

Hi! I have favor to ask. Please help me.  These all are wenrene fic.  There was a fic in which Wendy got into accident.  The situation was like this; Wendy lost her memory and didn't remember his son also thought Irene and her are together. Later got to know they live seprate but divorce hasn't been filed yet. They switch weeks for taking care of their son. Also Irene is dating her best friend Seulgi now. __________________________________ Also

Inspired by someone I don't know now.