Questions that need answers

Is there anybody out there who have been with somebody for years and had to deal with them having a baby with some else ? Like even before you started dating that person and they already had a kid . How do it work ? Like is it always drama ? Is there something always in the back of your head telling you that he/she would leave you for their kids parents? Or still sleeping with that kids parent ? Or being with somebody who made a mistake during yall break or argument and the girl comes back and says she pregnant!!! Is their anyway you could deal with that ? Would u wait until the dna test to prove that the baby is your significant others ? Even if the girl just got pregnant to raise the baby with her girlfriend would you let your husband sign over the rights to that child so they could raise the baby without him ? Seriously question that needs an answer

-Currently looking for a new person that i could talk to and build a friendship with a bond ! Not to many female out there that will support and be there for another