Yes. I think because our own time period's cultural baggage (sexual relationships are the Most Real, basically), sometimes historians get too hung up one whether the people in question were bumping uglies, like if the participants weren't banging it's totally meaningless that they lived together for thirty years, or that their letters clearly show a very intense emotional investment, or even recount numerous kisses and embraces that the participants clearly considered so intensely meaningful that they needed to record them on paper afterward. Sure, there's a whole paragraph in this letter about how person A clambered up on the train as it left the station to kiss person B goodbye, but was it a KISS-kiss?