need help finding webtoon

i only read the beginning so, its a straight romance the mcs name was yeorim (and her friends called her scourer too?) and she finds out her bf was cheating on her, later she was by the han river drawing on her sketchbook while cursing or crying not sure? and then a pencil falls into the river and she almost falls too while trying to catch it and then ml saves her and later gives her shoes too since she was missing one TT uhh also a few months later she goes to china and stays in a dorm w her friends (their names were sejin and yookyung i think) anyways turns the ml was also a friend of theirs and sejins roomate and then i left it at there also i think 40 or so chaps got uploaded here at once? not sure