无所谓

it doesn't matter; no matter; neither here nor there; never mind; damn; indifferent; unconcerned; airily; whatever; indifference; nonchalance

不在乎

not care; not mind; be indifferent; disregard; ignore; be unconcerned; not take to heart; shrug off; indifferent; unconcerned; nonchalant; uncaring; uninterested; dismissive; indifferently; carelessly; without caring; regardless of