MM, I think one of the things we forget during piecing is to continue to GAL and not fall back into our old habits that got us in this sitch in the first place. She should have things that she does on her own and you should too.
It IS good that that she brought it up rather than letting it fester. Also good that you thanked her. You both have to be comfortable discussing your feelings.
The ups and downs are hard to deal with but hopefully over time it levels out.