2 month old didn’t take boob

I’ve been mostly breastfeeding my baby since she was born. I supplement with a formula that helps ease gassiness. She typically only gets a bottle a day at around 1-1:30pm. She didn’t get that today so I gave it to her later in the evening around 8:30. I figured she would still need to nurse a little because it’s more soothing to her but she would latch and then get fussy and the she wouldn’t latch at all. She would only take the bottle. I absolutely love breastfeeding her, what’s the chance that she’s starting to not want to nurse anymore?? I really love the ease in the middle of the night of just picking her up and her eating and I love the closeness. I’m nowhere near ready to stop ):