It doesn’t hit him until later. Much later. In fact, he doesn’t even remember it until he stops at a Gas-n-Sip for some extra supplies.
The cashiers name is Louise. And suddenly Cas remembers a hotel room and not enough personal space.
“So, what — I’m Thelma and you’re Louise, and we’re just gonna hold hands and sail off this cliff together?" Dean had asked.
Cas suddenly has a vague picture of two women in a car and they kiss. Cas smiles. The cashier probably looks at him funny.
i’m not saying cas is in love with dean
but cas is really in love with dean