I live alone and I do get lonely but overall I can't imagine living with someone. I get annoyed so easily now that even normal behaviors by someone would irritate me.
I can really relate to the temp issues. I really hate when one part of my body is sweating and the other is freezing. Living in FL too it is so hot and humid outside and then you go indoors and it is like Alaska it is freezing.
My friend with temp issues who has a husband got an air unit put in a spare bedroom that helps her control the temp better. You can get those covers for the vents too or air directors I have used cause air blowing on me hurts.
Ok sorry for my vent on this subject. Stay warm or cool!