No, the pope did not make the “rule” - it is in the Bible, which was written before there was a pope or a Roman Catholic Church (I know, I’m going to get hammered about Peter - but I don’t buy that Peter was the first pope..)
Premarital sex reduces the chance of a successful, long-term marriage. It is reduced further by premarital sex with the one you marry, and even more by co-habitation.
Sex is extremely powerful, and few are able to use it safely - evidenced by the litany you posted. No premarital sex is a “rule” like “check the air in your tires”, “don’t jump off of tall buildings”, “check the oil and water levels”.
They are not arbitrary rules intended to impede one’s enjoyment or progress, but directions from the owner’s manual on how to best have a good, successful life.
I know, I broke the rules, and I am paying the price.
If I had a penny for every premarital sex relationship in the last century, I’d be richer than the Clintons. Pre marital sex does not cause broken marriages. I’m sure there are millions of marriages that lasted forever even though they had sex before the ceremony. Been married to the same woman for 39 years, we are still as close as ever, it takes more than sex to keep it going. If the chemistry is there, it doesn’t mater whether you had sex before or not. Telling people to refrain from premarital sex is as helpful as telling people to refrain from war.
What rule are you referring to?
From Bringbackthedraft’s post where he asks didn’t one of the Popes make the rules (about sex)