to behave with great decency and resignation

The lieutenant assured him, that for his own part he had no intention to offer him the least violence; but, at the same time, he represented to him the danger of incensing the commodore, who was already almost distracted on account of his absence: and, in short, conveyed his arguments, which were equally obvious and valid, in such expressions of friendship and respect, that Peregrine yielded to his remonstrances, and promised to accompany him next day to Winchester.
Hatchway, overjoyed at the success of his negotiation, went immediately to the hostler and bespoke a post-chaise for Mr. Pickle and his man with whom he afterwards indulged himself in a double can of rumbo, and, when the night was pretty far advanced, left the lover to his repose, or rather to the thorns of his own meditation; for he slept not one moment, being incessantly tortured with the prospect of parting with his divine Emilia, who had now acquired the most absolute empire over his soul. One minute he proposed to depart early in the morning, without seeing this enchantress, in whose bewitching presence he durst not trust his own resolution; then the thoughts of leaving her in such an abrupt and disrespectful manner interposed in favour of his love and honour. This war of sentiments kept him all night upon the rack, and it was time to rise before he had determined to visit his charmer, and candidly impart the motives that induced him to leave her.
He accordingly repaired to her mother’s house with a heavy heart, being attended to the gate by Hatchway, who did not choose to leave him alone; and being admitted, found Emilia just risen, and, in his opinion, more beautiful than ever.
Alarmed at his early visit, and the gloom that overspread his countenance, she stood in silent expectation of hearing some melancholy tidings; and it was not till after a considerable pause, that he collected resolution enough to tell her he was come to take his leave. Though she strove to conceal her sorrow, nature was not to be suppressed: every feature of her countenance saddened in a moment; and it was not without the utmost difficulty that she kept her lovely eyes from overflowing. He saw the situation of her thoughts, and, in order to alleviate her concern, assured her he should find means to see her again in a very few weeks: meanwhile he communicated his reasons for departing, in which she readily acquiesced; and having mutually consoled each other, their transports of grief subsided: and before Mrs. Gauntlet came downstairs, they were in a condition to behave with great decency and resignation.
This good lady expressed her concern when she learned his resolution, saying, she hoped his occasions and inclinations would permit him to favour them with his agreeable company another time.