Absolute morals?

For example, if a stranger rapes or molests someone you love, is there any circumstance under which it would not be wrong?

Certainly!  Morals change over time, and that twinge of guilt and "wrongness" you have is a conditioned response.  Conditioned in the minds of human beings, not floating around in the heavens waiting for us to figure out what they are.

Consider ancient Rome?  The slave boy keeping the stables clean loves the slave girl that pours the drinks for the warrior nobles inside...  A visit centurion takes his fun with the slave girl, and plucks out the eye of the slave boy on his way out for giggles...  Is it wrong?  Not according to these Romans...  nor to the Samurai who chops your non-Samurai love in half to test his sword, nor to the CEO who steals your skies and poisons your seas.

Are these things wrong?  I think so, but that doesn't make them absolute... because they certainly don't appear to be to everyone, least of all to the people who partake in such acts.  If something is absolute, shouldn't it be unquestionable and unchallengable by everyone?