It's good to know that Mark is doing a good job being Henry's dad. Yesterday Henry said to him what will I do if you die? Mark says - I'm not going to die for a long, long time. He says but what if you die when I'm 15? He says "who will do things with me, like you always do". Mark says - hopefully by the time I die you will be grown and have kids of your own and you will be doing the things with them that I did with you.
It made me think that Mark is doing a good job. Henry likes spending time with him and obviously he's learning to be a good father just like his dad.