Once a marine, she was walking around the base when something that made her lose all her trust in the Navy and marines, so she went to her to her quarters and packed her belogings and she runned to the docks were she stole a roawing boat and deserted the Navy.
But this decision went bad for because her higher ups ordered Charlotte Toriel to get rid of Patricia, but Charlotte Toriel saved her when she found her.
And she created a religion around Charlotte Toriel, to worship her savior and with that Goat Church was born.