He lost 0.58 so nothing major, he can still see the balance on the blockchain so he no doubt he'll be watching that balance grow in the future, he remembers it was worth around $110 at the time.
Sad to see he lost $1000 at today's rate, but by the rate when he bought it it's not much of a loss to him. Well I'm pretty sure he is going to regret that he didn't made a backup, in a few years when that 0.58 maybe be worth a lot more than what he invested.