** spoiler alert ** 
 Obviously as everyone has pointed out this is a sort of parody/pastiche of 50 Shades of Grey, so I'm not going to go massively into the compare and contrast thing - there are some very obvious moments, though. 
 I loved Arden. He's a hot mess, as they say, but he knows what he likes. I love that he's sexually adventurous already - especially in his fantasies - rather than entirely naive in every way. He is quite naive, though, just in a sweet way, that I think is part of the reason Caspian mucks about so much, trying to stay away and failing. I imagine him surrounded by sycophantic-yes-people, jealousy and manipulation, add in a dysfunctional upbringing and he clearly has no idea how to have a healthy relationship. Which is why I thought the "gift" he gives to Arden after receiving a bj on a balcony is a great catalyst to get them together again - it's a ridiculous thing to do, like part of a business transaction and/or taking the example of other couples he's witnessed giving wildly innapropriate gifts to one another (checking off those charitable giving and tax write-off boxes). And it's crackers enough to explain Arden's actions as well. 
 Arden has seen bad and good relationships in action, and isn't at all materialistic, so there's a clear disconnect between what he wants and what Caspian thinks Arden wants/should have. Though at least they're both convinced they don't want a relationship at the start. They just have very different ways of going about f*cking someone out of their system. 
 It was lovely to see Arden's unusual and very loving family during his trip home. But, this is also where it lost the plot a bit for me. When Caspian turned up he seemed like an entirely different person. As I said, it might work better in the context of the trilogy, but it felt like it was trying for a HFN until the next bit (which I didn't read the excerpt for because that's cheating ;P). 
 Aaaannnnd, OH!! Yes, I loved Nik. Arden/Nik, Ardik... Niken??? I ship it. One of my favourite best bits involved Nik and what I'm pretty sure was an homage to Black Books <333333333 And I got all emotional when he left as well. Also Nik served to contrast nicely with Arden's restraint, doing what the majority of us would do when given the opportunity to live like kings and queens at someone else's expense or win the lottery - make the most of it. 
 I'm sure I've missed or misread stuff, but I'm looking forward to finding out more in the second book.