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Everyone took a hit. It isn't your personal error LW because this has very little to do with your financial decisions. Markets all over the world show volatility. Most likely, your husband is informed and in touch enough to know this.
I can think of a dozen people who lost approximately 3/4 of their investments. Two on the brink of retirement who watched their (vested) stocks go poof.
Only people who are not aware or educated in business and finance would tell you that you screwed up. EVERY market has been affected. Blame and finger pointing going on here won't help when we are all in the same boat. It wasn't your advisor, it's much bigger than that.
So, LW, you are off the hook and don't listen to the crazies.