cold weather makes me feel like nesting. I'd light a fire too if I had one. There is a woodstove in the garage and it's wonderful when it's lit but it's really cold in the gargage. Catch 22 there. I would have to go outside in the cold in order to enjoy the fire.

As to the nesting I feel, I don't have anyone to nest with. I think that's what is missing for me. Closing up the house for winter and wanting to snuggle up to another warm body but having none. That sucks.
I don't know what is missing for you september. If I did, I'd find one and send it over to make you smile.