Earlier quoted context omitted.
I would love to know what sequence of characters you normally use in place of an em-dash to express the same nuance of relationship and timing.
Not the GP, but I often just use commas and parenthetical asides (like this). It's a different stylistic choice (em dashes are nice and all), but it's not how I think, and my writing reflects how I think. I also will often use the fabled semicolon. It's easy to use with contrasting statements, but that's not its only use; I can use them in some situations to elaborate where em dashes are used. I'm not saying they are…
I regularly use the semicolon, especially in a sentence where this are commas use in another way. In my mind, a semicolon is a "greater" separator than a comma; used to separate parts of thought in the same sentence (vs grouping of items or a pause).