Haman refrained himself. That is to say, so far as speech and act went. He said nothing; he did not strike his insulter; he did not order his servants to drag the fellow outside the gate and give him the bastinado.
But he did not "refrain his heart." He allowed the affront that he had received to remain in his mind and rankle there. It poisoned his happiness, marred all his enjoyment, filled him with hatred and rage.
When he came home, he sent and called for his friends. It was not so much to be partners in his joy that Haman called his friends around him as to be companions in his grief. It is true that his speech to them was chiefly occupied with boasts; but the true intention of the discourse is seen in its close—"All this availeth me nothing," etc.