Relationaship talks are usually a big NO NO especially while WA spouses are in defense mode...but, it sounds as if you pulled yours off quite well as it sounds as if you made a lot of "I" statements and kept the convo pretty focused on your shortcomings and desire to know her perspective on them so that YOU could change for the better.
The fact that she allowed you to give her a massage says that she felt 'good' hearing something from you that showed her that maybe YOU were finally 'getting it."
Now DON'T push it...drop it. Continue to allow her to see those changes through your ACTIONS. Be consistent. Don't persue. Let her sit with the info you've given and allow her to 'watch you like a hawk to see if your words are real."
And more importantly DON'T allow yourself to believe that this one good contact with her has broken the ice...because that will raise your expectations and hurt even more when you don't get the reaction you're hoping for.
While our spouses are 'lost in the fog'...they are apt to be UP one day and a complete ALIEN the next, so expect that. T2