Spike knew it would be dangerous to retrieve the Bell with his friends, but he wasn't about to let them go without him. No pony would have expected to him to become collateral but when Chrysalis made good on her threat to his wings that's what happened. Everyone is dealing with the results now. Spike with his loss, Twilight with her guilt, other friends with being there for the young dragon. Their friendship is strong, they'll find a way, they just hope it isn't too painful a road for him.