Ai ni Naburareru
Atsushi is very popular and at the start of the series he only had casual flings. He thought love was a hassle, but then he slowly started falling for his friend Mizuki. Once he realized his feelings, he became very caring towards Mizuki. I like that Atsushi was quick to clear up a misunderstanding with Mizuki, and was very straightforward with his feelings.
Kuro X Koi
It was actually easy to tell the twins apart lol
Playmate (Rainy Wata)
Some of the angst or misunderstandings could have been resolved if both parties had talked properly and were honest. Yamato just got jealous on his own and made assumptions. But it worked out in the end, and most of it because Shima was willing to step up and confront Yamato with his feelings.
Kainarasu Hazuga Aegasarete Komattemasu