Some excerpts from Matthew Henry’s commentary on the book of Ruth (not a blanket-endorsement of Matthew Henry, as this LINK shows).
On Orpah’s decision to return to her people and her gods:
“Strong passions, without a settled judgment, commonly produce weak resolutions.”
“Thoughts ripened into resolves by serious consideration are likely to be kept always in the imagination of the heart, whereas what is soon ripe is soon rotten.”
And then a commendation for Ruth:
“Ruth dutifully observed her mother’s directions; she continued to glean, to the end, not only of barley-harvest, but of the wheat-harvest, which followed it, that she might gather food in harvest to serve for winter, Pro_6:6-8. She also kept fast by the maidens of Boaz, with whom she afterwards cultivated an acquaintance, which might do her service, Rth_2:23. But she constantly came to her mother at night in due time, as became a virtuous woman, that was for working days, and not for merry nights. And when the harvest was ended (as bishop Patrick expounds it) she did not gad abroad, but kept her aged mother company at home. Dinah went out to see the daughters of the land, and we know what a disgrace her vanity ended in. Ruth kept at home, and helped to maintain her mother, and went out on no other errand than to get provision for her, and we shall find afterwards what preferment her humility and industry ended in. Seest thou a man diligent in his business? Honour is before him.”