I have a creature enchanted with Pariah:
All damage that would be dealt to you is dealt to enchanted creature instead.
I then play Blood of the Martyr:
Until end of turn, if damage would be dealt to any creature, you may have that damage dealt to you instead.
The rules appear to say that this does not result in a draw, because according to Blood of the Martyr I "may" redirect the damage to me.
104.4b If the game somehow enters a “loop” of mandatory actions, repeating a sequence of events with no way to stop, the game is a draw. Loops that contain an optional action don’t result in a draw.
Then, am I forced to give the damage to the creature? Do I have a choice to draw the game by choosing to give the damage to myself forever?