sounds like you might want to resume a more aggressive handling of your anxiety - whether it's more intense counseling, medication, bio feedback, 12 step work, meditation, whatever. There are a lot of tools out there for managing anxiety that help by increasing awareness of where we are about to go in the throes of an anxiety attack before we do something we might regret. Anxiety can snowball with a small trigger and increased awareness of whats coming is huge for making alternative moves.
I've got no comment on the relationship. Sometimes we are in the wrong relationship which can trigger a bunch of crap, or sometimes we are in a good relationship, but our own personal issues trigger a bunch of crap and it's up to our partner to decide whether they want to stick it out with us or not while we work through it.
A Path With Heart Jack Kornfield
The Power of Now Eckhart Tolle
Both books that I got something out of.