Responsibilities of a step-mom
My fiancée and I have been together with my 12 year old daughter and our 6 month old son. Recently his 9 year old son decided to move in with us. My financee is a truck driver and is out of town a lot. His son is ADHD and a lot of work. Our baby was born pre-maturely and has a few medical problems which require a lot of my attention. He cries a lot too from the pain. My question is when my fiancée goes away for 3 to 4 days on a road trip, is it my responsibility to watch his son or should he go to his mom for this time frame?
Any help would be greatly appreciated. Many thanks!