Universal energy - going down or up?

Ben Miller on TV back in Jan laboriously (re-)discovered his physics basics about temperature meaning & measurement:

• tea cools and heats surroundings, you don’t get the reverse spontaneously i.e. without applying energy
• the universe gradually all becomes the same temp
• you never lose energy, it just changes
• so Big Bang energy will eventually be evenly spread throughout universe
• this is entropy

However now we're told that the expansion of the universe is still speeding up ... hmm, so the universe as a cup of tea is getting hotter, in which case energy must be being applied  from outside ... now would that be:

• a rather large life-form with a blow-torch
• God's breath
• or a much bigger, hotter universe cooling down

I know this doesn't help with today's wars & famines, it's just occasionally interesting to let the mind wander.  Any thoughts 'on a postcard' always welcome.