Sending you big virtual hugs and good vibes,
@Chinese_whispers!
Definitely always listen to your gut! If something feels off, best to stand still for a second and check why that might be than to barrel on, imo.
It definitely is a strange thing to notice/keep track of. I would also easily understand why December, with the holidays and all, would make you mention your son's dad more. And like, was your bf listening in on your conversations? Oy , not a good look.
Hope all the puzzle pieces fall into place in a way that's the best for you and your kiddo in the long run