Is OTHER wrong in the post ? POST : Background: during a late night with our fussy daughter (6 weeks old) I opted to get up and feed her.  She finished about 3/4ths of a bottle of breastmilk, leaving about a quarter of an ounce in it.  We left it on the table.  2-3 hours later our daughter is peckish again and I gave her the rest of that breastmilk and then gave her a small bottle of formula until she fell back asleep.  My wife was awake for the first feeding but was asleep for the second.

That morning I mention I gave her the rest of the breastmilk bottle that she didn't finish.  My wife was upset, telling me that she could get really sick from stale milk because she had drank from the bottle a couple hours prior.

I decided to look up online if it was true.  For formula you need to throw it out after an hour, regardless if it was touched.  But for breastmilk there doesn't seem to be any issue with it being reused, at least for up to 4 hours, since breastmilk can fight against bacteria better than formula.

I sent her a link to what I had read, and the next thing I hear is a very sarcastic "Clearly you're the better parent here, why don't you take care of her and I'll go back to work instead" and now she'll barely talk to me and has just been livid with me all day.

TL;DR: wife was upset I gave our baby leftover breastmilk that was about 2-3 hours old, showed her research it's not bad for a baby, and she doubled down against me and is even more upset.