My dad doesnt want to be a grampda.

Well at least not to my kids (his actual grandkids)

I had my first baby when i was 18 and my dad was strongly against me raising him on my own. Said he would not be there to support me and tried to force me to give him up for adoption. Now 5 years later i have 2 more kids that he barely sees but loves to copy pictures on facebook and post them. I live only like 30 minutes away. However my step mothers grandkids are always with him. They call him grandpa, they comeover often and stay the weekend (they live 2 hours away) He babysits them, takes them on all kinds of road trips and out to dinners and what not. I have asked my dad a hand full of times to help me so i could work or handle other emergencies and he always says no so i dont bother anymore even tho there were times i really needed him. My kids barely know him. But the part that really broke my heart was the other day when he posted about the great time they all had at the science museum that he took his wifes grandkids to that was literally down the street from my house. I understand he loves his wifes grandkids very much and he absolutely should! But i cant understand how or why he has chose to not have anything to do with his actual grandchildren.