It's true, Erwin was particularly badass that day. He still isn't sure how he escaped and managed to use the gear one-handed; most of the day is a blur. There is definitely a point to be made about him acting more careless and foolhardy than usual, and how he'd gotten too used to having Levi watch his back. The titan that got his arm would have never gotten that close if Levi had been there; of that, Erwin is certain. Not that he blames Levi for what happened; it was completely his own fault, his own carelessness, that lost him his arm.

(From another perspective, if he hadn't had his arm out and held away from his body, rather than pointing forward, the titan wouldn't have had anything bite down on except his torso, a much less survivable injury. Maybe losing his arm alone was the best possible outcome.)

Erwin sighs as they settle back in, adjusting himself so Levi has as much warm skin as possible to lounge on. "I'm glad you approve." With his arm on, he's now able to curl it around Levi's back while simultaneously playing with his hair with the other hand. Glorious!

Erwin closes his eyes for a few moments, just revelling in the sensations of touch and closeness. "I have to tell you... this is already a top five birthday."