After she explained it he did feel rather dumb for bringing up the idea of wearing armor while exercising. Case in point, she stripped off hers now before she started was going to star her own round of push ups. As she got down to the floor he began to sit up and watch her. "Copy me?" He asked, before realizing what she was replying to what she said. "Oh, I see." He said with a bit of a laugh.
He wasn't entirely sure why she wanted to hear his voice. Did she just wanna hear how winded he still was? Perhaps she wanted just wanted to hear her husband's voice while she did it? Nonetheless he'd count along. "Alright, well show me how the pros do it. 1, 2, 3,..." He counted, feeling confident that she was going to pass him by at least 50 push ups considering that's where she wanted him. "25, 26, 27,..."
He'd watch on as his clearly more fit wife wasn't showing nearly as much if any sign of struggle. "50, 51, 52..." Considering how competitive she was she was during their fight, and even a bit afterwards, by the time he gets into shape he could see her always wanting to one up him. He figured that all he could do was try and become at least her equal some day.