Oh a happy dance for you! Of course you still may have issues, but they probably don’t hurt as bad?! 
Issues, nawwww!
If it makes you a small person, well, you can come join my small person club, where I take glee in similar situations with my ex husband (or ex-boss, ex-boyfriend, relations that dissed me). I’ll let others be “bigger people.”
Your story made me smile. It was inspirational, even. I’m happy for you.
As for “issues”…
OF COURSE YOU HAVE ISSUES!
Issues? I should imagine that’s putting it mildly. Don’t be ashamed for finding satisfaction in one-upping someone who hurt you. What small discomfort he felt when seeing you looking so good positively pales in comparison to the emotional pain he put you through, I’m betting.
If I were you, I’d choose my route to maximize the probability of him seeing me again. And I’d wear skimpy clothing. Um… really expensive skimpy clothing.
I like the sound of your club, Dangerosa.
Yo Go Girl! I can only hope that my soon to be ex husband runs into me in the same type of circumstances:D
You go girlfriend!!
shakes head side to side while puckering lips
You show that sucka what he be missin’
repeat headshaking movements
Cos’ ain’t not a damn thang he do cin do 'bout it neither!
emphatically point both index fingers while widening eyelids
That’s right girl, go on wit yo bad self, mmmm hmmm!
I had a similar thing happen last summer, with an ex who had cheated on me after repeatedly telling me how fat I was (after I’d been sedentary due to multiple rounds of leg surgery, no less). I’d gained maybe 15 pounds, tops. He’d gained proportionately more during that time, which he blamed on my wonderful cooking (talk about a backhanded compliment!), which was ridiculous, because I saw him maybe 1.5 days/week and cooked a couple of meals during that time. Besides, it’s not like I force-fed him; he managed to eat compulsively all by himself.
When I ran into him, I was back to my tanned, relaxed, reasonably non-hippopotamus-like self. He, OTOH, had gained probably 40 pounds since we broke up, all of it in the gut. It wasn’t a good look for him. (The slut he cheated with had dumped him within a few weeks, BTW.)
Maybe his new girlfriend DOES force-feed him.
My ex left me for my best friend, many years ago. I was, understandably, crushed. Despondent, even. It wasn’t a good breakup.
A few weeks later, I went to go see a movie with an old high school friend of mine. She and I had never dated, and this was a platonic “let’s get Lightnin’ out of the house” kinda thing.
Until we sat down in the theatre, that is. 'Cause it turned out, purely by accident, we’d sat down directly in front of my ex- who was there alone.
My friend (who’d never liked my ex, anyway) leaned over and whispered in my ear, “So… your ex is right behind us… wanna neck?” 
My ex didn’t even make it through the movie- she left before it was half over.
Sometimes, when I’m feelin’ blue, I think about that day and just smile…
How does one say ‘Congratulations’ and ‘Hey, how yooouuuu doin’?’ in the same sentence?
Tripler
Like it matters. I’m already taken: by Uncle Sam.
Whatever happened to “Don’t ask, don’t tell”?
d&r
Understand you’re feeling good about it.
But to gloat – bad form.
No, no—didn’t you read the OP? She’s in fine, fine form… 
To gloat at him might be bad form.
To give him a dismissive smile-and-wave, and gloat to friends later, is excellent form.
WTG, katie!!
Just out of curiousity, if a guy had been in the same situation, I’m wondering if the applause would be as strong.
Oh, for Pete’s sake.
To gloat to him is bad form. To gloat to us is perfectly fine form. To do so in size 8 jeans is fabulous form.
You have found the precise balance, sir. And I couldn’t agree more.
*:: bows :: *
Your Excellency.
And katie, good for you!
You’re not so bad yourself.
I know, I’m gloating, but I felt the same as Jodi- if I’d said “Geez, looks liek you found the 50 lbs I lost” or something, that would have been bad form. But to make nice, tell him it was good to see him, and gloat to y’all- well, OK, it’s still gloating. Sue me.
There's a German word for this- I'm sure someone will jump in with it- it roughly translates to "shameful joy", that kind of sheepish feeling of happiness you get when someone else suffers some misfortune.Schaudenfreude.
Schadenfreude. Sorry.