I was assuming I wasn't saying what I meant clearly (not that he was incapable of understanding). Just to clarify.
As far as not absolute. IF there is a God, there is an absolute right answer to every moral question, even if we don't know the answer.
If there is no God (or decision maker of some sort), there is no absolute right answer to any moral question because there is no absolute moral authority.
1. Your first conclusion is only true if God is what you think He is. There can be a God who does not make morality absolute.
2. Your second conclusion is only true if an absolute authority is required for absolute right answers. That doesn't seem to be the case in any other area of study - why is it the case for morality in your mind?
1. So what? A god that says "Just go do whatever you want!"? I guess, God could choose to not make decisions as to absolutes, but then we'd be in the same situation.
2. Because then what decides?
If there is no ultimate authority and life just ends when it ends, how can we really say it is wrong for me to murder you? Yes, it ends your life, but life is meaningless, it has no real purpose. Its just random chance and there is no reason to hold it as sacred or important.
We could make an agreement (say, social contract) that says I won't do these things if you don't either. And we could violate that social contract. But that doesn't necessarily make something moral or not, only against the agreement we made.
But even then, it just ends. no end result. no right or wrong. It just was what it was.
as far as area of study, I don't think Morality isn't an area of study. It can be studied (I guess), but without an ultimate "measure" of right/wrong that gets to decide officially what is right and wrong, there really isn't much to study other than various opinions on the matter. And my opinion and your opinion don't matter, really, they're just opinions. Without an ultimate truth, there can't be ultimate morality.
Like I said, it'd be like doing algebra where x+y=z. There's no way to solve that, there are no numbers and no clues as to what those values mean.