I like the note that Edward might have destroyed the unnecessarily frightening wand of detect magic after finding out that Tedd is literally the strongest kind of wizard that we know about.

It is all but outright stated that Noriko abandoned Tedd and Edward becuase Tedd didn't have magical powers.

The only reason they thought that was becuase the wand frightened Tedd enough to instinctively act against its detection spell.

Ergo, there's a very real possibility that the flaws in that wand's design cost him his marriage.