That was a bit passive aggressive even if you didnt mean to be. If you want to decline just say "I am busy". If she presses just say "I have plans".

Remember you need to be mysterious, not cocky. If you have to say something referencing marriage just say "these are things I do with my wife. You fired me from that role"

M:16
T:21
H(me) 38
WW: 38
S11 D16 D19
Red Flags of A: March 2018
ILYBNILWY: August 4, 2018
Moved out of MBR: September 24, 2018
BD/Confirmation of A: October 31, 2018
D Filed: March 27, 2019