If Mukuro said no and if Hibari didn't want one, Nata wasn't going to push the subject of getting the other a healer any further then that. It just seemed more efficient. He understood that Mukuro was not to happy with Hibari, but for Hibari, he was confused. Was he just trying to just puff out his chest and act like a tough guy. That wasn't very smart, just because you accepted the help of a healer did not make you weak. But, he wasn't Hibari's judge and he wasn't about to open his mouth and speak his thoughts. No...that would lead to him getting hit again or worse, scowled by Mukuro. Maybe Chrome too.
Nata hugged her waist, beaming sweetly at her. He missed her a lot and though Mukuro reassured him that she was safe, Nata wanted to see that for himself. "Affirmative, but it's not the same without you. Mukuro and I need you." A giggled slightly, hugging her tighter as if to reinforce his words before loosing his grip and glancing back at Hibari. "...Does Mukuro bother you that much? We already discussed that he's...." The NPC shook his head, rethinking his words. It was difficult not being blunt or stating facts as fact should be, word for word, but he didn't want to come off as baiting Hibari again. Maybe...try being nice? Try...
"Perhaps, when you are well again, Hibari. I can explain to you what you saw, The Gate, is." Maybe.