In the true DB approach yes you can ignore it. sandi doesn't agree with that approach for WWs, and since she was one I would tend to lean towards her way of dealing with it. I felt in your sitch that it was better to just wait it out since I just don't see that ill conceived A going very far. I know when I was 19 I moved on fairly quickly. I can't imagine standing still for very long for an older, married woman. 19 year-old dude, typically, aren't looking for long term. In fact, based on how your W is behaving I'd guess she has already received this message from the OB (still can't call him OM!). Since she seems to so intent on you not getting fed up and going anywhere.
But I defer to sandi. I've never been a WW.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018