Baking assistance

RiotDemon thought this was worth mentioning said
13

Got a baking question. Currently have banana bread baking in the oven. The recipe called for buttermilk and to mix it in with the sugar, eggs, vanilla, and baking powder until smooth. The buttermilk separated and looked super gross once it started mixing. When I smushed the mixture between my fingers it was smooth and not curdled feeling so I figured I’d continue on seeing as flour is pretty inexpensive. Added the flour and remaining ingredients and everything looked and smelled fine.

It’s baking in the oven and smells great. I’ll find out later today if it failed or not, but it was just bizarre. Any ideas? When I try to Google, it just keeps giving me results for buttermilk substitutes of clabbered milk.