Word to express surprised, but not surprised
I would suggest that these situations are tragic or ironic but not surprising.
Irony and surprise are both characterized by something unexpected happening. Likewise, tragedy is about things that were good turning bad, usually due to some fatal character flaw (as in the scorpion or addict).
People disagree about what is or isn't ironic a lot, but to me the key thing about irony is that sense of something unexpected that actually makes a lot of sense. Whereas something surprising feels like it is coming out of nowhere.