Do I have a right to be mad?

So I have 2 close friends that I've known for over 10 years. Both of them had babies before me. I went to the hospital for when all of their kids were born. My one friend had her 2nd boy a few months ago, and my other friend got mad because I didnt go to see him that same day. But I was busy. I did see him the next day. Well I had my baby boy 2 weeks ago and neither of them came to see my son, and still havnt. The friend that got mad at me claims she got sick. Which is fine I wouldnt want her to be around my newborn sick, but now that it's been 2 weeks and she still hasnt stopped to see him or even messaged me to see how he or I am doing. My other friend talks to me but hasnt even asked to come see him. I made sure to see all 3 of their kids. They also made sure to go visit each others kids. I've always felt like the less important friend and they prove that time and time again. Is this something I should stop being friends with them over? Because I honestly feel like I'm getting to that point. Right now I just feel like my family is all I need. Does that make me a bad friend? Or am I right to feel this way?