He wont forgive you if you do it with the thought he'll forgive you later, It says so somewhere in Corinthians.
And Now that I think of it your right, He is an angel (fallen angel) but an angel indeed, and god says he will forgive any man that asks him. But satan isnt a man... Hmm.. I dunno, Another thing I'm gonna ask god when I die.
Along with
a: whats the answer to life, the universe, and everything
b: How did he make everything
c: What was his inspiration for all his creations? (If you think about it, he's like a supreme artist)
d: And how do they put the cream in those little twinkies