well my parents didnt get divorsed but my dad died
when my mom started seeing my step-dad i felt really scared and worried he was going to do something wrong, so much so that i threatened him and told him that if he ever hurt us i would kill him
as the being a big brother, i was really scared and convinced myself not to trust him...
i have a little brother, who is 16, another little brother who is 11, a little sister who is 7, and another little brother who is 2
my dad died when my mom was 8 months pregnant from a car crash
im sorry this is happening to you, and i can't tell you this is going to be ok
you just need to trust your dad and his lover, but while also remember that not everyones perfect and that relationships dont work out sometimes
you should never apologize for having feelings