One half of this millennial couple is cheap, the other doesn't believe in budgets at all

It’s like clockwork. When a 37-year-old HVAC technician we’ll call Rick is plugging away at piecing together a new system, the push notifications on his phone come in rapid succession: Boom, boom, boom. Rick, who earned $185,000 in 2019, receives an alert each time his wife, a 31-year-old stay-at-home mom we’ll call Leslie swipes his credit card. On cue, Rick’s Apple Watch will send him a follow-up notification: This one simply says, “breathe.” ...