This one was very frustrating and majority of that was the MC. I'm not a huge fan of the unreliable narrator thing. It's never been something I've enjoyed and I didn't realise this one would have that trope when I started it. 
Also the MC suffered from PTSD & anxiety. Which is not a bad thing to read about usually. I can't speak on the representation personally, so I have no idea if it's good or not. However, it made for an extremely painful read. The inner monologue was so frustrating. The most minuscule things were fixated on and it completely distracted from the story. There were also so many times that I was internally thinking 'for fuck sake just...'. For example, this woman treats the MC like crap multiple times and the MC is still doing everything she can to become friends with this woman and I'm just sitting there thinking 'literally why?!' and there was one scene where it was pouring rain, she's only got a bike & she is carrying a big ass bag of dog food. This dude she knows offers her a lift and she says no, while clearly struggling, over and over again for absolutely no reason other than not liking people knowing where she lives... I would understand if it was some random, but she knows this guy. Or even better solution, don't buy the bag of dog food you can barely carry when you only have a bike and it's raining. Get a smaller bag... So it was just straight up frustrating reading paragraphs and paragraphs of this. I just couldn't deal with it and I ended up DNFing at 220 pages. 

Writing felt very repetitive and I just wasn’t getting into it. Was listening on the audiobook and I was subconsciously pausing the book and just listened to nothing… So that tells me a lot. 

I felt like I guessed half the plot in the 7%ish I did read. 

I also wasn’t enjoying the MC. He was bland, 2D and kinda annoying. 

Also why the hell did we need that age gap when they meet at that age? There wasn’t anything romantic so far but their friendship was uncomfortably intimate for a 10 & 16 year old. If you skipped that bit completely and just had them meet late in life then cool or made them both 16 or at least closer in age. Then there wouldn’t have been a issue…