I have to agree with the others that think your W is noticing the changes in you, and thus the comment about you being "hit on."
My H is doing the very same thing now. As he left for work this a.m. he made a comment about one of the guys that I work with...and I have to realize, a few weeks ago he would not have cared enough to make that comment. He would have been pushing me at him.
I agree that she is noticing the new you, and believes that you could be desirable to someone else.
Keep up the good DB work
Most of us are about as happy as we make up our minds to be.