<human>: My fiance pays all the bills right now, because I have had a tough time finding a job that works around college.  We have been together for 3 years.We also have a 9 month old son that I stay home with. I clean, cook, wash clothes, and everything else I can do to help. I also buy everything for our child including diapers with the money from things i have sold (which isn't much). Today we started arguing because I left the air on all day. He told me that this is his house because he pays the bills and if he tells me to turn the AC off I should do it. I think he's being a childish, selfish idiot. How should I handle this?

Condense the text into a few key points
<bot>: fiance selfishly thinks that everything is his just because he pays the bills. Even though I'm a part time student and a full time mother to our child.