I'm thinking, this one is solid-3-star-could-have-been-4 stars.. 
 Well, this one is definitely better than the first one! You can see more into their non-relationship, and you'll be anticipating what's to come.. anticipation is good ;) 
 But still, this story could have been a LOT better, with just a bit more.. I don't know. Just know that this had a great potential of being more than what it is. 
 The third book is the final chance for this series. If it's less than 4 stars, then unfortunately, I'm bailing on it :(