Ohh that will be pretty interesting! I remember the kind of reaction he had to Ethan, so with Miles being a friend I think it would be great to explore!

Oh yeah they will deffo have ups and downs, especially as Iris doesn't like to open up in general as she doesn't want to put that emotional strain on Cas. 

I'm really excited to see the goods and bads as the story goes on!

I was looking through the types and I think I personally am a type 5. I've spent most of the evening reading up on these xD