<human>: So, I used to work with this guy and one day while I (male) bent over to pick up something, he noticed that I was wearing Pink underwear.
As you would imagine, he told the other guys at work and they all had a good laugh. 
This particular individual, however, went overboard with this joke and kept bringing it up in every conversation that ever ensued - weeks, and even months after (i.e. even a simple 'hello' from me in passing, would prompt him to say something like "how's that pink underwear going?!" while laughing to himself).
Anyway, this got very annoying and because I didn't have to deal with him much, I just let it go and stopped talking to him.
I eventually got promoted, got moved to a different branch and didn't see him again.... Until today (almost two years since I last saw him).
While picking up some files, I bump into him in front some of my old co-workers and say "Hey mate, how's it going?" and sure enough he replies with a smart-arsed "Still wearing that famous pink underwear?".
My natural response to this was to give him a peek of my elastic waistband (completely different pair) and say "What these? Nah mate, I was leaving your mrs.' place in a hurry again, but this time I remembered to put on the right pair".
Room went silent. Everyone was staring at me with a deathly gaze.
His Mrs. had passed away just a couple of months ago with cancer. This was his first week back at full-time work at the company since then. FML.

Can you condense the text into three sentences or less?
<bot>: Guy giving me shit for pink underwear. I insinuate that it had belonged to his mrs. Unknown to me - His mrs. actually died a couple of months ago with cancer.