I recall Gordie's wife once being upset that he wasn't going to - physically - fight for her. She's trying to set up a triangle with you as one of the nodes. She obviously wants you to see OM as a competitor for her womanly charms so that she can pop popcorn and watch the drama. The fact that you have your own romantic interests are a threat to her centrality.
You are doing well in trying to keep it all business and not get sucked down her rabbit hole. It takes practice and not being in situations where you are obliged to engage with her.
Fortunately "crazy season" is almost over. Generally the ex-spouses go back down whatever rabbit hole they were in when things calm down.
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells