He showed a pictur of Cas and Elden kissing the day before.
Cas: Ohhh...that's a good picture!
"Yez!"
Cas: ...I'm glad you like Elden...
"Yes!"
Cas: I Really like him too...
"Foo?"
Cas: Yeah, Elden's getting ready to go and then we'll go eat, ok?
Cas ruffles Elias's hair