(S/O) "Heh, I'd buy that for a dollar-"
I get that reference it's from Robocop! aka my favorite movie
Asta's s/o jokingly says it would be nice to have their own soaceship... They then have to physically restrain her from buying them one
Asta doesn't like using her money, since many people would try to take advantage of it.
But when it comes to the people she cares about? That's a different story.
Arlan, S/O, and a few others have the privilege, and burden, of having access to Asta's wealth.
S/O has to be careful with their wording, as whenever they mentioned it'd be nice to have something, Asta would take that literally.
(S/O) "Heh, I'd buy that for a dollar-"
(Asta) "What are you getting? I can help out if you need it-"
(S/O) "W-What? No, that's just a saying-No, Asta! Put down the phone!"
Asta becomes absolutely flabbergasted whenever S/O offers to pay her back for a meal, or gets her something instead.
To the point she'd be willing to buy them something grandiose to show her affection.
(S/O) "We already said goodbye to the Astral Express?"
(Asta) "Yes, they're out travelling the galaxy now."
(S/O) "Heh, I wish the two of us could go exploring in our own ship."
(Asta) "...Do you need one?"
(S/O) "Hm? Well, It'd be nice to have but-Asta, don't you dare."
S/O reaches for her arm before she can even grab the phone.
(S/O) "How the hell do you even order a spaceship from an app anyway?!"
(Asta) "I can show if you-"
(S/O) "NO!"