yes but he went missing and she doesnt know if hes alive or not its hard to explain but he didnt want her to know about like what happened to him like his leg in this case hes just badly injured but tis diff in the book but later on she finds out and takes care of him
it was needed since jin chao didnt want mumu to know what happened and wanted her to watch and take over her mom in australia but in this case canada they later meet again 7 years later tho