When my cousin's then-boyfriend texted her that he would be coming home late because he would be stopping by the department store on his way home from work, she, knowing full well that he hates going there, never buys clothes there if he can help it, and generally asks to stay home whenever she goes, knew instantly that he could only be going for one reason: To buy an engagement ring.
Practical-minded, she responded: Don't forget the coupon we got in the mail, there's a discount on rings. Ever helpful, she sent him a photo of the coupon code.
He left her on read. When he came home, he was cagey and grumbling, and when she was like "Did you remember to use the coupon" he was like, "I don't know what you're talking about, why would I be buying jewelry, etc.," not meeting her eye.
Few weeks later he took her out to dinner at a fancy restaurant, spent the entire night grumbling under his breath and shaking his head in disbelief, before going "아이씨" and pulling the ring box out of his pocket and slamming it down on the table. "How the hell did you know," he said, begrudgingly impressed.
She was like, "It's really not hard" and then was like "Did you use the coupon" and he was like "Yes I used the coupon"
And to me, this is romance