The Young Wolf That Can't Learn to
Ijimerare Taishitsu Omiai Aite no Futoi Yubi de Iku
He bullied her in middle school because he was in love with her. He was in love with her for years.
Renai Daikou
The ML is in love with Mari, but it takes a while for her to fall for him as well. It has many dark themes.
The Makeup Remover
7/10 - They did not end up together in the end, which dragged down the rating significantly for me; it had the potential to be a 100/10 for me if it wasn't for them not getting together... It had so many powerful aspects, but the ML's feelings went unrequited. I hated that. However, I loved the friendship between FL and Heewon. The ending pissed me off.
Me no Tsukedokoro ga Deep Desho
This is one of the cutest things I've ever read! Re-read this, Kane. He's been in love with her for 10 years, never wavering (it was an unrequited love from his side). She was clueless and because she misunderstood his shyness as her not being his type when they were kids and he fell for her, she never thought she could be with him. They of course ended up together, because, they are in fact each other's fated person.
Koi to Yobu Niwa Kimochi Warui
4/5 or 7/10 - The ML is pretty damn creepy, obsessive, stalkerish, and borders on predatory, but his love is still sweet (other than what I listed), and he's funny as fuck. He's masochistic, which makes his character funnier. And, the FL's rejections, harsh responses, and how he reacts to it is just hilarious! She doesn't confess until the last chapter. She started liking him around halfway through the manga. He fell for her instantly (when she called him disgusting, while he was coming onto her. He immediately fell for her and proclaimed his love for her - that it HAD to be her for him). I love the ML's sister/the FL's best friend. She's really stoic and cool. May re-read.
Abe-kun's Got Me Now!
100/10 - re-read and buy it! Kazune's love went unrequited for a while and he was extremely persistent, but he finally managed to get her when she finally fell for him too. They got married and had 2 kids at the end, their daughter being a mini-Kazune. She even told the dojo that she wants to grow up to be a strong gorilla like her dad XD
Kuzu no Tadashii Aishi Kata.