I suspected this was on the horizon; it's a shame when you put a lot
of work into something and then leave in disappointment. But, as a
fellow (worn out) idealist, lo siento.

You're the only person I've ever imm'd (I think), and you deserve
recognition for being able to put up with me for however many years
we ended up working together. We disagreed about a lot of stuff, but
became friends anyway, and I did enjoy working with you (though I'm
sure I never said that enough). Ultimately, the most important thing
to me was knowing that you cared, whether we saw eye-to-eye or not.
And I know you cared.