I'm in the same boat... 14 day back to work count down, won't take a bottle, tried 13 different bottles, other people, left the house.. I'm at a loss on what to do

Leave him with someone else for a few hours and have them give a bottle. You may have to try a few different ones or just hope he takes what you have. Definitely don't be a around for a few feedings and see how that goes. Get a fluid syringe because he can still be fed that way in case he doesn't take a bottle. Since its hot here he shouldn't skip feedings and his caretaker should give the syringe if he doesn't accept a bottle. Its also important the person who is giving bottle knows how to do it all properly. See YouTube for proper method such as pace feeding.

He will probably get cranky without you and need more comforting as well. Leave behind a blankie or something that smells like you.