Drifting away from friends

My boy is 10 months now and he's such a sweet heart! I'm lucky to be a stay at home mum for now so have such a blessed life with boys! I'm 25, married and very happy! I have a new friend group of mummies forming but I'm finding it hard to mai rain relationships with previous friend.

My best friend I met when we were in university together and have friends for 5 years now. Our lives are so seperate , she lives about an hour away and we try to talk on the phone but I often have to deal with baby or he's sleeping and it's difficult to talk.

I guess I'm not worried about not having friends as I have a few close friends with babies my sons age and have a great marriage, I guess I'm just concerned I'm not missing her?