He's moving away because I dumped him

For close to a year, I was in an unhappy relationship. I was then living with my boyfriend and we both shared expenses as we had good jobs.
Then we joined this wonderful octal club and I fell in love with a man in our group. My boyfriend found out and I had to move out of the flat.
I knew he was heartbroken and I felt guilty. I now heard he has voluntanly asked to be transferred to another state and will be moving away soon.
I feel so responsible for turning his life upside down. What do you think I can do to ease his pain?

I’m not sure there’s anything you can do. The bottom line is you made a decision to end your relationship and go off with someone else.
It is sad, but it is what you had to do to survive. Now your ex has made a decision to move away. That’s sad too, but it’s what he has to do to survive.
He’s taken action to pick himself up and start a new life. The best way you can support him is to let him handle things his own way.
Don’t consider going back to him. It wouldn’t work and you know it. You’re no longer his partner and you’re not responsible for him, so don’t waver.
(Bunmi Sofola)