Newbie - bf suddenly left after 9 years

[Italian]

Hopping in for a quick update before I answer your thoughtful comments...

So my mother called him today to arrange for changing the locks at the house. He seemed to have mysteriously forgotten that we've spoken about stuff like furniture etc and said he'd call me to ask. My mother told him not to. Again he was very cold and detached, didn't even ask how I was doing.

What a selfish ass*ole. Selfish, selfish, SELFISH. I know I need to detach, and I've read that this level of self-involvement is normal, but the thought that he doesn't give two craps about me after nine years and promising me forever... it pisses me off SO much. I hope he finds the decency to at least feel guilty and apologize in the future. But I need to not care.