Ore No Kurasu Ni Wakagaetta Moto Yome Ga Iru
Bickering couple gets divorced after work and poor communication interferes with their marriage, but they travel back in time with their memories into high school and accidentally (husband tries to avoid his wife at first) rekindle their romance. It's really kind of sweet seeing them fall back in love talking about manga and being young again, going to the zoo and already knowing that the other person likes.
Koboreru Ambivalence
CH 6.5 The scene where Yugo accidentally drinks alcohol at the bar and is sitting dazed in the alleyway, Wataru lighting a cigarette and lighting it with him, so cute. I wish we would've seen their relationship develop into a more mature way, but they're taking it slow!
Nigate na Koibito
Accidentally started dating a guy he doesn’t even like when he’s outed as gay and says “What if I said I like you?” to push him away, and surprisingly met with a confession from puppy-like redhead friend.
Nakanu Hotaru wa Ao ni Kogareru