Gone after 7 years read story inside

As the title says, after 7 years she just left and left note i had to i don't see myself here anymore, good luck.
I have been with girl for 7 years, we have been on and off for some reasons but eventually we stayed together.. maybe 1 month before this she was always saying what if i go somewhere and work i don't see my self here anymore, what if this what if that, and i started to feel unsecure but when i asked her she said no no i don't mean that. We have dog also for 5 years and she left him with her mother even though she was very very close to the dog and said she would never leave him, and today i just saw message saying i left in another state(country) i couldn't live here anymore i don't like it . Stay safe goodbye and she blocked me everywhere. I contacted her mother she said she doesn't know bla bla(mother is with her of course) and don't call us anymore she decided like this..
8 years ago i had even longer relationship with my previous gf and she left after 8 years so more or less i managed that break up but this is a bit harder i see. Now i am coping as you all know, and i feel pointless in my life and only thing that bothers me the most is that she only left note after 7 years saying this and left in another country , i mean come on who does that!
Maybe she found another dude, i don't know etc etc and left with him but i think what she did is very rude and it hurts a lot!

Did you have something similar happen and how did you get through?
Also to mention that i recently lost my job too and that is also a thing in my life so more or less i feel very lonely and very bad and sad...
Thank for reading.