Did they have the concept of a "soulmate" in the 19th century? (Roman, Britain)

[Katiethegreat]

Was the term soulmate or anything akin ever used? I'm thinking more from 1830-1919 Britain and the US,but I guess for the whole 19th century.
Did many people have the idea of "one great love", "one true love" or is this a very modern idea? Maybe in spiritualist circles it was talked if.Did many people marry for love? I know romantic novels,songs,poetry were all about so there must have been many people who were full of romance and married for love.We're the lower classes more likely to marry for love than the upper classes?

[Dd714]

I cheated and looked in Wikipedia:
"The term "soulmate" first appeared in the English language [in a romantic context] in a letter by Samuel Taylor Coleridge in 1822."

Yes in previous centuries both classes married for reasons other than love, and were pre-arranged, usually for economic reasons. For royalty it might be for political reasons. But love could be a part of it as well, or at least a contributing factor, or surprisingly an arranged marriage where no affection existed originally could mellow into a sort of love and admiration between the two.
These type of marriages changed gradually in developed countries, in developing countries arranged marriages may still exist today.

[Clarallel]

But the concept of "one true love" dates back to the Middle Ages, doesn't it?