I know that Allen advocates doing things with full openness about what you're trying to accomplish...I know that doing things covertly are difficult and when BUSTED, make you look only that much worse.
That being said- see what Allen has to say...I know that you are safeguarding your M and that is NOTHING to be ashamed about.
As for the Anniversary, maybe a generic card, nothing more...the correct answer may be nothing at all.
I would def not go all out w/ anything more than a card though.
Sounds like things are OK- I wouldn't believe the gay thing either, could be a diversion...