childfree and losing friendships

I am in my 30s single and childfree. I have no desire to have children and really don't enjoy being around children at all. I don't hate children don't get me wrong but I am just happy without them in my life. my best friend has recently had a baby and I am going to see her tomorrow but I have to be honest I'm not looking forward to it I feel fake cooing over a baby and feel uncomfortable as soon as someone hands me their baby. I feel awful that I feel this way I should be excited which I am happy for her but from a distance. Has anyone else ever felt this way ? I feel guilty