He can be your babys father. . I think a dad is the one who loves him or her and raises them.. but if the other guy wants to be in their life he should be able to.. hes probably just scarred right now. . Good luck@
My daughter loves her dad(who is not the biological father).. She has not seen her biological father since she was about 7 months old.. a dad is not the one who makes the baby, its the one who raises and loves the baby.. if the biological father wants nothing to do with the baby i think its perfectly fine to let him/her feel loved by a father that wants to love and raise him/her..
Explain it when they are old enough to understand. That's what i would do, and what a lot of people do