He is a 3 year old Honduran milk snake. He is fed a large mouse every other week and has been eating that way for a year now.

Cage: 4x2x1 animal plastics
Temps: 90° hotspot, 80° ambient on the warm side, 76° ambient on the cool side

This started a month ago, and it coincided with a power outage where my thermostat reset and when it was back on, his temps were about 2° warmer than normal. I thought that was the issue and I fixed the temperature and that solved the issue for a couple of days before he started again. He is only rubbing at night when he is normally active. He has no mites or signs of an RI. He has been in this cage for a few months with no issues previously.

Is it possible it’s breeding behavior? If so is there any way to stop him? I don’t have any female snakes that he’d smell except a hognose.

Also, is there any contagious disease that would cause this? Only asking because now every time I see my other snakes out exploring I worry they all have something. The other snakes aren’t nose rubbing though.