I just read your other post. I'm sure part of her concerning behavior is the mites but I also wanted to warn you about compact UVB's causing lethargy, eye problems and a multitude of other health issues, even relating to death. If you would try something, turn the compact light off for a few days and see if you notice any difference in her. Being without a UVB for days and even a wk, would be better than having that bulb turned on. I am only passing along my concerns and we have read about the damage with compact & coil bulbs way too many times on this forum. When they were changed to a good strip fluorescent like the Repti-Sun 10.0 or Arcadia D3, the owners couldn't believe the difference. Since the female is smaller, that may be why the compact is affecting her first. If you want to read about some of the problems, you could do a search on this site, just type in "compact UVB" and you will see lots of posts about them and the coil UVB's.
Also wanted to mention something else, if you are using any type of stick-on thermometer, those can be off by as much as 20 degrees. The only 2 ways to get an accurate reading are with either a temperature gun or a digital thermometer that has a long wire & probe on the end.
That's good that you are watching for dominance issues as they can start occurring very quickly and can cause one or the other to slow down in their eating and activity level.
Please let us know how things go.