I have a question I just got a male and a female not know that she was pregnant and the male I have is not it’s father so I was wondering would the male try and eat or kill the baby since it’s not his? Or would he take on the father role?

it really depends on the glider, some adopt, others don't... I know it doesnt help, but there is no way to be sure.
In my experience however, females are more likely to attack others' joeys than males.