Christians- Why not forgive Satan?

if you were alive for thousands of years and have had the glory and greatness of seeing God himself upon His thrown and have had the access to Heaven and all its wonders with eternal life, do you honestly think he feels bad? that he's a bad angel and no one likes him? he took 1/3 of Heaven's angels with him out of Heaven so as for being the only bad angel that's out, second God sent him out of Heaven not a 12 man jury, third satan is incapable of being good anybody who's been on earth for a receptive amount of time knows this