The Love We Couldn't Keep

Both are mini dramas in which the ML approaches the FL in order to get revenge for a family member's death, only to fall in love.

Both are minidramas in which the younger ML approaches the older FL romantically, all for the purpose of getting revenge as he blames her for the death of his family member.

Both are mini dramas in which the ML approaches the FL under false pretenses but genuinely falls in love. Both couples are younger ML/older FL, both FLs are business women who the ML work for/with, and both FLs had a former fiancée/boyfriend who died or disappeared.