XX is so proud of DW! The gate to stop baby getting into the conservatory is up!
Friend of DH's put this as his status update.
FUUUUUUUUUUUUUUUUUUUUUMEE! I put one of our stairgates up. If DH has felt that it was such a momentous achievement for the Little Woman to have done a Man Job that he had to share it with the world, I would have decked him!
Perhaps it's part of a bit of banter between them? I can imagine saying that sort of thing to dh if we were having a sarky sort of silly argument, and facebook is a bit odd like that (people often seem to use their status updates in a personal in joke type way I've found).
There are various benign explanations (she had been saying she would do it for ages and finally did so; it's something that's understood between them as an affectionate joke WRT her being more skilled at such things than he is, could even be a case of her overcoming some difficulty (spatial issues, motor control problem or whatever) to have done it). Or maybe he is a sexist knob.
Have you really not got anything else to get your undies in a bundle about?