Me and my best friend are becoming distant

My bestfriend of 6 years hasn’t been talking to me as much since I got a boyfriend. I mentioned to her how I don’t know anything about her life anymore and she said it’s because I don’t call her anymore, but she doesn’t call me anymore and she doesn’t text me often either. Over past few months she’s been getting closer with this over girl that I am now considering her new best friend. It doesn’t make sense to me how they are always together and even started working together, but when it comes to me I have to reach out to her to talk or to make plans. Is this hypocritical or is there something I’m missing?

I really want to hear other people’s thoughts on this or any advice I guess.