Several years ago when my wife and I were having our first round of divorce talks she went to her boss to share that she going to divorce me. He comforted her and then shared with her that he had been in love with her for 10 years and had never said anything. Well she melted and fell in love with him.
Anyway... long story.... The reason I am sharing it is that she continued to work there for a year and they worked closely and went out to lunch often. This was a painful time for me. My choice was to try not to be the bad guy in the situation. I actually made it a point to go to her office and make friends with everyone there including her boss. I brought cookies, fixed the computers.
I guess I was trying to insert myself in to the emotional dynamics of the office. That way I was not just a name I was a living breathing person and he and others in the office could get to know me and perhaps see the good parts of me that my wife may not have shared.
Time passed and the OM's wife found out about the situation and became very insecure and jealous and made lots of demands of no contact etc.... That worked out well because I felt better about the no contact and I received bonus points for trusting her and not being insecure and controlling like the wife of the OM was...
So perhaps extending trust and friendship to your wife on this issue and inserting yourself in the social fabric of the tennis club is a plausible course of action.
Plus you may get other opportunities to smash a serve down his throat....
