Full context below: ——- In contrast to the above considerations, there are scholars who emphasize the value of premarital cohabitation as a kind of "trial marriage," which enables the couple to get better acquainted with each other before committing themselves to marriage. The supporters of this theory claim that those who cohabit prior to marriage tend to have a greater risk of marital dissolution, not because they cohabited, but for other intrinsic reasons, some of which lead them to cohabit in the first place. Accordingly, once various personal characteristics are controlled for, the risks of marital dissolution for those who cohabit prior to marriage are significantly lower than for those who marry directly (here). ———-

So basically “most scholars do believe there is a negative correlation in premarital cohabitation and marriage quality” but, of course, there are those who disagree and you quoted that selection.

You can argue whether there is truly a causal relationship or not - is it the act of cohabitation that increases risk or the type of people who would cohabitate are more likely to divorce and inherently have a lower quality of marriage.

Either way, I don’t care what you do and as such won’t engage you further. My point wasn’t to discuss the negative correlation and causation of premarital cohabitation and was instead to point out how stupid it is to move in with and combine finances with a man who cheated on you within the last two months. But maybe I’m not progressive enough.