simple google "canada survivor benefits after remarriage"

告诉你们朋友要到本地去找协助单位，这种简单问题他们都是知道的。不要问东问西非专业人，可能会耽误事情。

https://www.canada.ca/en/services/benefits/publicpensions/cpp/cpp-survivor-pension.html

The Canada Pension Plan (CPP) survivor's pension is a monthly payment paid to the legal spouse or common-law partner of the deceased contributor

....

If you remarry

Your pension will continue even if you remarry.