Strawberry Summer

I really enjoyed the book (though going by some reviews if I had read anything by this author before I'd be disappointed?), but I didn't give it a better rating for a few reasons.
First of all, Maggie. She really got on my nerves as the book progressed. Even though we saw everything from her pov I was still on Courtney's side on the breakup? I thought I would love her when I started reading but she seemed overtly judgemental and immature (i would accept immature in the flashbacks but I can't in the now section).
Second, why is the bisexual character the only one to ‘not like labels'? Will this trope die already or do I have to kill it myself? Every bisexual person I know will shout it from the rooftops if asked so I have no idea why it even exists.
And third, I think the flashbacks took too much of the story. I would have liked to see more of them now and their getting together again seemed rushed to me. Too easy considering Maggie's (childish) behavior at first.
I will still check out the author's other books, though, and I look forward to reading them.