Best friend's brother

I'm falling hard for my best friend's brother. We text almost daily. We talk about pretty much anything. But she figured out that we were talking and told me not to expect anything from him because I'm not his type. His family is super judgemental of him. I think he is afraid to bring me into that because I have a child. They keep their family life private so I dont know a lot about that. I also love my friend and I'm confused on why she would say this. We've been friends since we were kids and we're mid twenties now. The way she said that seemed like it was out of concern and she does know him better but I'm just confused. I know I sound ridiculous but it's been a long time since I've gotten butterflies every time I see someones name pop up on my phone. I have nobody to talk to about this. Maybe I'm just over thinking it.