Tom and his wife are unhappy because they

I believe the answer is, because they were unable to fulfill each other's rights.

        its hard for some people to get along and that’s the case for douglass and canot. most of the time when people do not agree with each other its because they have different presperctives, and that is the case here.

captain canot was never a slave so but he was a slaver and a slave ship captain and just like the slave master's he tought it was it was totally normal, he used captain conot is a cruel man who enjoys whipping slaves but never   got whipped he saw it has a destiny for the slave to be a slave and the slaver to be a slaver   but douglass has suffered whoppings cut   even for no reason sometimes. douglass believed that slavery was not natural to black people, they need to study and learn how to read and write. he knew they have rights.

it was really not the captain’s fault he was just brainwashed by the system and when your brainwashed by the system its hard not to be brainwashed. but the reason douglass wants this is because he has suffered he knows how it feels and will do anything to stop that.

tending to cause harm