This thread exists to support those who need structure. I practice yoga much more often when I have a class to look forward to. In my apartment, my mat sits in the corner. It's not preventing them from moving on (because that takes a while), but it is laying the groundwork for them to eventually be able to venture out on their own when they're ready again.
I'd only compare dealing with a break up to heroine addiction if the person were locked in their room listening to emo music with the lights out, letting themselves stew in depression and sadness. That's no way to heal. Here they can find like-minded individuals who can empathize with their pain. Nothing wrong with that.