Ya that never helps.. I went through the same thing two years ago.. I hooked up with GF from when I was in 7th grade.. we were twelve..
It had been 25 years.. she was in Kentucky I live in Idaho.. she came out we hooked up she went back then we kept at it till she wants to come home to Idaho... everything felt so right... I was in love.. I went and got her, she moved in real quick (related to your story)... then things went to hell.
I don't want to relive it but similar to ypur story.. I hung on when I nknew I should have walked .. So I appaud you for leaving when you did ..
I didn't and suffered way longer than I should have.. but it isn't easy to let go of something you want.. so I know exactly how you feel..
I really don't think there is a cure all for a broken heart.. But some day you will look back and it won't be so bad.. you just can't see it yet
I listen to the cure when I'm down,, it's depesing some say.. but it takes me to the bottom so I can rise again
https://www.youtube.com/watch?v=WTxlNtm6lyI