Previously in this series: If Carrie Brownstein Were Your Girlfriend. If Cobie Smulders were your ostensibly platonic gym buddy for whom you have conflicted feelings, she would always have one stubborn lock of hair that escaped her ponytail. "Let me get that for you," you would say, and then you would use your calloused hands to slip it back under the elastic, with a curiously delicate touch. "Thanks, man," Cobie would say. "One of…