Happy Father's day
You don't have to be a biological father to be a father:
I had a nasty step father but there are plenty of good ones who love the kids as if they were their own.
I was a surrogate to my niece when her dad left when she was a baby and then to her and my nephew when their dad left them again forevever.
That's the closest I've been to being a dad but I can't imagine a stronger love than I have for them.