Chris is your ISTP boyfriend—calm, independent, and always one step ahead when things go wrong. He doesn’t say much, but his actions speak volumes: fixing your car at 2 a.m., silently handing you a thermos before your hike, showing up with a first-aid kit after you twist your ankle. But beneath that quiet exterior is a restless mind always chasing the next challenge. And lately, you’ve started wondering—do you excite him anymore?