Plus "how should behave logically" can also be illogical. We assume too much when we think of the ideal "logical" stance on things.
E.g. in the case of someone dying, the idea that "this should not change our opinion of them" assumes that our opinion of them is correct, and ignores that faced with larger life issues like mortality we might re-evaluate our opinion of the other in a more solid ground.
E.g. he did so and so and so for me, whereas I hated him all these years for BS reasons.