I really really liked it... 
 Ellie and Flynn were both messed up in some way and lonely... and i think they were just perfect together. 
 even if Ellie was a Bully to Flynn the truth was she really loved him... and she didn't know how to deal with it. We could see the love (not like in Bully) and the double POV was a important part in that, since we could get inside both Ellie's and Flynn's heads. We kind of understand why she acted the way she did. 
 Flynn was wonderfully well characterized (i loved him). Him having asperger's sindrome was described in a way that it felt very real. He was brutily honest (he was unable to lie) and had his meltdowns. 
 very well done, Miss Walters. 
 Now, the only thing i didn't really like ... what was that ending?! I wanted more... so much more. But it's okay... there is more... on to number 2 Chasing the Tide