Normally lists should usually be 10, but due to the lack of source material I have to reduce it to 6. Because shockingly, after all those books I've read, so far only these 6 can make it up to my list. However, it will definitely grow, since many popular series with hate love relationships I haven't read yet, and I definitely heard great things about those series too.
1. The Black Mage Series by Rachel E. Carter
Anyone who knows me knows how much I love Rachel E. Carter's Black Mage Series. It's. so. good. It has one of by far the best hate/love relationship I have every seen. It was perfectly timed, it has the right amount of 'moments' between Ryiah and Darren, and you just really feel the chemistry brewing between them PERFECTLY, not too cheesy and not too boring. The world building was perfect, we understand it perfectly without being overwhelmed, and it's set in a magic academy the first three books. I probably re-read this series 3 times per month because I have really been having trouble finding a replacement for this. Only 2 other series can even come close compared to the hate/love relationship, and the story in general.
2. Penryn and the End of Days Series by Susan Ee
Susan Ee's Penryn and The End of Days series is one of the two series that can come close to The Black Mage Series in terms of Hate/Love relationship. You have no idea how happy I was to discover this series. I can across this about 5000 in my school library, and it took me about the period of 12 months to actually check it out. I never regretted it. The only part I'm really pissed about is where the hell is the author?! It's like she disappeared out of thin air. She has no new books, no activity whatsoever. It's like she quit. It's so infuriating, like, I need more! Especially Raffe, I need more Raffe and his perspective!!!
3. Air Awakens Series by Elise Kova
I actually struggled with the last series and this one on second place for my list. Ultimately, Air Awakens is one of my all time favorite series, so I was more tempted to put it on second. But since this list is majoring on hate/love relationship, I think Angelfall should go on top since Angelfall is more hate/love relationship, while this more prince/commoner love story. That's because although Air Awakens has hate/love relationship, it mostly focused on Prince/Commoner forbidden love. However, that does not make Air Awakens any less than Angelfall, in fact if not better. I absolutely love and adore Aldrik and Vhalla. Actually, fun fact, my kindle's name is Andrick. Yeah. Now you know. I came across this series thanks to Amazon's refused attempts to not shove this in my face. And for once, I am truly grateful. It's also because of this series today I trust Amazon suggestions more then I should, since it's living proof how Amazon is truly capable of finding me my next true love.
4. Lux Series by Jennifer L. Armentrout
My enjoyment toward this series was a huge surprise to myself (especially to myself). I remember it like it was yesterday. Like I woke up one day and it was suddenly everywhere. I turn right and wham there it is, smack in my face. While Amazon had shoved Air Awakens repeatedly in my face, Goodreads probably chucked it to my face for about 200 times too before I bought it. I tried the sample on my Kindle, but wasn't confident enough to buy it, and it didn't help that it seemed like another lousy written paranormal romance book filled with horrible plot-line, character development, and so forth. So it stayed on my TBR list for another 5 months while Goodreads continued to chuck it in my face, refusing to let me forget it. Finally one day something came over me, and I YouTube searched "Obsidian audiobook". So I decided I will listen to the audiobook to determine whether or not I should buy this book. And the rest is history.
5. Under the Never Sky Series by Veronica Rossi
I have mentioned it before, and I'm going to say it again. Under the Never Sky is actually one of my favorite dystopian series of all time, most mainly because of its hate/love relationship and its place in my heart for being of my first dystopian series ever. The main character, Aria and Perry are like hate-at-first-sight-enemies for who they are. Aria is a Dweller and Perry is a savage, and slowly we can start to see them starting to mend to become more friendly, which would later brew into love. And another thing that made the relationships so good is how everyone else in the world opposed their relationship (because they were supposed to be enemies), and how Perry through that in certain situations became really protective of Aria from his people who want to hurt her (which was really sweet and cute, just saying). However, actually putting this on my list is kind of pushing it. The true ones are the top four, and I just added this because I enjoyed the relationships and would like a top 5 instead of top 4 which would've been incomplete.