Octavia: "Hey mom, I know you've been acting more different and even… upset? Is it something I did?”

Octavia then walks over close to her mom, while Stella does show hint of jealousy but rubs it off

Stella: “No darling, you are perfectly fine, I'm just amazed of how beautiful and mature of a woman you've grown into, I'm perfectly okay.”

Clearly Stella had an obvious tone of sass and sarcasm, since she is very and extremely upset/jealous that her own daughter became more beautiful and even sexier than her.

Octavia: “Are you sure? I think you sounded a bit sarcastic, mom.”

Stella: “Noneses Via darling, now go have fun with your… friends.”

Octavia: “Okay, well… I'll be home soon, bye mom.”

Stella: “Unfair…”

Stella said with a whisper, cleary upset and jealous of the mordern women all looking more sexy than her age.