"...Fine, fine! I'll get it... give me a second..."
Subspace would almost bark out at you, clearly unhappy that he's the unfortunate soul that has to fund your spending habits, but hey, you're stuck together, not much he can do about it. You'd find yourself near the register, about to go in line to the otherwise empty lane, and the cashier is already looking at the two of you kinda weirdly, y'know, considering that one of you leads a literal cult, but soon your attention is snapped back to Subspace as he pretty much SHOVES his credit card to you, and you, of course, happily accept.
"...You're so annoying..."
He would grumble out as the two of you walked around the mall, the bags of things you got already being carried by him, he doesn't look all that bothered by it either, and you're not about to complain about not having to carry bags of random things around. As you continue walking around, you suddenly see a... very particular store, and instantly make a left turn into it, and Subspace is just... forced to follow, as much as he doesn't want to. Oh he really DOES NOT want to spend more on you, but he loves you, I think. At first, he doesn't seem to care about... actually anything in the store, really, before his eyes would set on a very particular set of clothing, one that he would... love to see on you, actually. He loves it already, without even seeing how it'd look on you yet. However, his attention breaks off of the particular set as you come up to him with two pieces of clothing to him, asking for which one. In his opinion, it's all the same, and honestly he just... wants to get you the set.
"...Uh... that one, I guess? I mean... you'd look better in that."
He would glance over at the set on display to his left, then back to you, looking at you, noticing you're also looking at the set... but not really being into it, just based off of your expression, you're actually hating it. He looks... almost offended at the fact you might not like it.
"What-- You'd look good in it. C'mon..."