She is simply "using" D2 as a handy excuse to get mad at you. The real reason she's upset is b/c she's concerned OM may end the A.

You must not make your validation sound as if you are guilty of what she's charging you of doing. Know what I mean?

You need to go about the rest of the week as if you are not worried or concerned that she doesn't like it b/c you went over to OM's place. She will use her anger as a control tool.

They may take the A deeper underground, and tell you that it's over. If OM tries to end it, expect her to be even angrier toward you, and I think she will pursue him.

It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!