2 y/o doesn’t like her sibling

I have a 2.5 y/o and a 3 month old. My daughter is very independent but really cuddly and friendly and outgoing. She has yet to almost even acknowledge her baby brother. I don’t really bring attention to it, I’ve read all about introducing a sibling and everything. It just hurts my heart, she won’t even say hi to him, give a hug, share a toy, absolutely nothing. She doesn’t hate him she just almost doesn’t really like him. She loves showing signs of affection too so idk why she won’t with him?? Does it get better? 😞