My BF stays at my house and if he has nothing on the next day will stay at my house because it's much nicer and quieter than his flat. I had a particularly high gas and electric bill last month and when he was alone there yesterday texted him to not have the heating on all day as i'm struggling with the bills. He messaged me back to say he had hammered the heating all day as he was cold but offered to give me some money for it. If I hadn't mentioned it, I don't think he would've offered. AIBU to think he's an absolute CF? We have only been together a matter of months. No kids on either side (not sure if that matters!).