If Wanda wanted to focus on the differences in the situations and willfully ignore the common factor, Tony wasn't going to attempt to enlighten her. Wanda didn't need a personal nemesis to get herself into trouble, and Tony didn't need the friction. Besides, he liked the apology, that wasn't something to tarnish. He took it with a chin held high and hands clasped behind his back.
At her request, he gladly bumped his shoulder to Wanda's again, head turning to watch the sharks swim against their current until they were out of sight. Much like with the horse, Wanda was speaking before Tony had opened his mouth to explain (or possibly just talk to himself about) obligate ram ventilators and the relation to mutation and a vague sense of familiarity, and instead Tony pursed his lips and suspiciously eyed the glass that Wanda dared to get so close to. Eight thousand sticky hands and noses pressed up against it today alone. "Actually," he picked up with only and awkward half-beat pause, "I've been working on something for Pietro." He backed away from the glass himself until he could sit on one of the benches running along the center of the modular blue room. "I'd have to stay and run some tests and you'd be short a teammate without him," he elaborated as he crossed his legs and appeared to deeply contemplate their conundrum. It wouldn't be the first time he put Quicksilver out of commission, but at least this time he could help fill in the gap Pietro left behind for a little while.