.
.
.
.
.
Adam posted on Instagram around day 25 of the game about his mom's death
this means he most likely quit the game around day 18-22 to get time to get out of sequester, fly back to the USA, grieve a little and then post on Instagram about it a couple days later.
Tonight's episode covers day 18 so it's possible adam does quit.
If Adam doesn't quit tonight then he 100% FOR SURE quits next week because next week will cover days 19-21.