baby's dad not around

Shelby
Single mom here. Baby boy looks just like his daddy & I can't help but cry some days because his dad is missing out on the most amazing thing in the world. Wish he would come around but he made his decision to not be here. Not sure what to do anymore. I can't hate him because he gave me the most beautiful little boy ever. But I'm tired of feeling like a failure cuz I couldn't even keep him around. 
Sorry just needed to Vent. 😞😞