My wife left me 18 months ago and it's still very raw because we co-parent my young son so I have to see her regularly. Every time I see her it hurts bad.

I recently discovered that she is now 'polyamorous' and has multiple boy friends if that is the right word.

The thought of her being intimate with other men is soul crushing. It's torturous. Men who are probably better physically than me.

Any advice about how I can get out of this?