
It seems that Master has been dead for quite a time (?) and has long been taken over by an alien (or turned into one).
Android might've been sending out signals to lure people in the ship to feed his Master?
Anyway, Master didn't attack the Android so maybe he's still has some semblance of sentience left.
Stop leaving him out! You can't ignore the puppy when it's asking for affections, y'know?