I FUCKING LOVE BLACK HAIR

okay im in love with my dark hair, acc its NOT black its very dark almost black brunette but in a couple of washes itll turn brown which im...not ready for. And im sad for. Because i mainly only dyed it again because i wanted to make my whole hair the same color everywhere since i had bleach patches ;( and it did!! And then my idea was for when  it all washed out i could do blonde highlights and grown in with my natural blonde hair...but the thing is...........I fell in love with this color. IDK WHAT TO DO.