Re: Another going away post...
I'd tell your husband to try the bottle to get him to sleep. He may take it since you'll be gone. I was really worried about my daughter going to sleep/staying to sleep when I left for the weekend when she was 19 mos old, but she did just fine. She knew I wasn't there so there was no point in fussing. My DH said she woke less with me gone, in fact. She had been weaned off bottles since she was about 13 mos and she took one here and there, but didn't really want them at night the way I thought she would. Don't worry too much about nutrition. Your LO can go three days without nursing and be fine. He'll either up his solids or drink the bottle and whatever he misses he'll probably make up as soon as you get back.
Around a year is a very typical time to wean from the bottle. I doubt it had anything to do with anything you did. That's when my daughter started refusing them as well, though she continued to nurse until she was two.
I doubt very much he'll wean in three days. I bet when you get back he'll be really excited to see you and reconnect with a nice long nursing session.
“We are not put on earth for ourselves, but are placed here for each other. If you are there always for others, then in time of need, someone will be there for you.”