i just assume sedna carries a prop asteroid around at all times, just in case there are some dinosaur plushies lying around which need smashing.
and spoiler alert: she definitely will not stop calling him “future husband”.
Transcripts
sedna: come on dini, lemme see your dinosaur collection!
dini: no. y-you’ll break them.
sedna: i won’t this time, i promise!
sedna: please?
dini: no.
sedna: please?
dini: no.
sedna: i’ll stop calling you “future husband”.
dini: okay, f-fine.
sedna: whoaaahhh…
sedna: so which ones het smashed by an asteroid again?
dini: w-where did you get that?!