Am I childish or did my ex get karma?

I’m not really a spiteful person, and to be honest she meant the world to me at one point so I wish her the best. But I really can’t help but feel like she got karma.
I’m a weed smoker, did before the relationship and still do. It helps with my autism and ADHD symptoms.
but nearing the end of our relationship she started making my life hell for it, the way she acted she might as well have called me a no good junky.

She started a new relationship about 4 months after, but I’ve heard from a very trustworthy source that her new boyfriend is a snorter.

she did a complete 180 from how she was in our relationship, she started smoking cigs, drinking heavily each weekend and snorting (I believe ketamine). I felt pretty shocked when I heard it but I can’t help but feel like I got out of it a better person. She dropped me in my low point and it went downwards from there. Took me a year but I’m 99% over it.
I hope she finds out what’s good for her and quits that dumb shit, but man am I disappointed in her. Never expected this in a million years.

Am I childish or did my ex get karma?
Post Opinion