Hi Steve, I want to share something I learned. Success isn't touching a stove and "not get burned" or "not let it get to you"--that's a trap trauma survivors fall into, one I've fallen into, a subconscious desire to relive a trauma with a better outcome. Success is on a different path--learning not to touch the stove.
Breakups cause pain. Breakups don't have to cause suffering.
With those caveats stated, I support your goal of being more resilient.
PS - OM betrayed you. I wouldn't believe anything that comes out of his mouth, either.