The first one is from around laryngitis. Burt does a lot of stuff with Finn and Kurt feel neglected. At some point, (i don't know if it was a suicide attempt or an accident anymore), he gets in the hospital. But Burt keeps on being with Finn, and at one point Puck ( i think Puck was in a relationship with Kurt or almost) says something like, 'It's Kurt who's in the hospital he needs you!'. That's all i know.
2. I think the second one was a one-shot, but i can be wrong. But Kurt had commited suicide, and Burt is at his gravestone, and he says to 'Kurt' something like, 'i could have a thousand little footballplayers, but none of them would be you Kurt' .
Both were angsty stories.