[Cordelia definitely notices, but again keeps her expression somewhat neutral. She chooses her words very carefully, smiling gently.]

Evolving does strange things to the body. I don't think it is something you should feel you have to hide. It doesn't change you as a person. You are still you.

[And to break the tense moment, Eevee spots his lap and decides to plop down. Cordelia chuckles.]

See? Eevees still love you, and you have friends who I know would stand behind you no matter what. Myself included.