First I duct taped the crack on both sides... hahah problem solved!! Then I used an exacto knife and "beveled" (aka shaved off) the entire edge of the seat.
Next I added a little batting and leftover fabric and "upholstered" the seat, securing it with duct tape!! Haha soooooo ghetto! Then I slid the whole thing back together and voila, Yules now has cute upholstered chairs (just don't look at the bottom haha)!!!