How Do I grow Closer to My Daughters Aunt?

My daughters father is a deadbeat and basically ignores his child and whenever this happens the rest of the family barely contact her either so I stay away in my own life with my child and each day pes thats it but i would like to know how can I get closer to my daughters aunt or anyone else in the family she just had a baby and although my daughters father is a jack *** I would like her to know the rest of the family but they are hypocrites too because they barely call to see how she is doing but what things can I do im just doing this for my daughters benefit only