None of this was the case for the vast majority of people two centuries ago!
People not being able to find love seems largely beside the point; that’s not an economic issue, it’s a personal one. You could have a society as fabulously rich or grindingly poor as you like for that.
As far as I can tell, people in the past (at least post serfdom) also had greater opportunity to travel in search of greater opportunity. Today immigration controls make it difficult for people to leave failing countries like the US.
... Eh, different challenges, really. By the mid-19th century, adult death rates on transatlantic emigrant ships had fallen to a mere 1-3% (~10% for children), with some spikes into double-digits for adults due to disease. It was a one-way voyage; virtually no-one ever returned.