In her father's will, she is called Patience Sweet (?). This may simply be a mis-transcription of Smith.
From the RI Cemetery Database:
SMITH, PATIENCE 1748c - 31 JUL 1775 WK005
From newenglandancestors.org -- RI Vital Records:
1765 Smith: Smith Stephen, Jr., of Stephen, and Patience Arnold, of Simeon ; m. by Eld. Charles Holden, Dec. 26, 1765. more 2 176 Marriage Warwick