Also, why did he not have Panchali at that night? Why did he allow her to sleep separately? On the next day when Drupad offered him to marry Panchali then he did not say, "look brothers, the girl's father wants me, what can I do now? So let me marry her alone" if he said so, none of his brothers could protest, they obeyed him at once. But Yudhi did not do so. Which lusty would share his desired woman with brothers? Which lusty would accept the one year rule happily? I never think any of Pandavas had 'lust'. If they had not enough self-restriction they could never make such happy relation with Panchali.
As for Keechak, he told Panchali that her husbands have seen everything, they would take necessary steps. That sentence assured Panchali and also gave Bheem a green signal to take step. You know that Bheem could do nothing without Yudhi's order/permission so here Yudhi gave him that. At that situation, they were in aggyatavas so he could not make it clearer.
Sorry if I have hurt you 😊
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