I have been googling trying to find this book for days now, no luck!
Heres a few details I remember. A girl named Hannah (Or Hanna) committed suicide (I believe by drowning herself..she couldn't swim) Her boyfriend and best friend are torn. In the book the friend looks back on there time together. I believe she (the bf) even was helping Hannah to swim. I believe they were young...Like teens. In the book also goes back on meeting her boyfriend.
I remember bits and pieces that I'm not sure will help! Like I remember her bf came over to Hannahs house (after her death) and went in her room, I think she found something. I remember snow at one point, or a walk in cold weather.
I 'think' her Bf and boyfriend might even get close cause they've been mourning together
It was a red book, paperback, I believe like a novel (maybe even based towards teens) I remember there was a pic of Hannah on the front, I think dark curly hair, I also think it was a short title
I bought it at a grocery store in Vegas when I was a teen on vacation to read on the way home, I read it like 3 times too, wish I can remember the title

Can you help, Please!!!!