animes where mc actually shows his love

for those who have watched the 100 girlfriends who really love you, I want an anime like that where it clearly shows how much he loves his girlfriend, and she loves him back. where the boy/girl shows their love to each other expressively without dragging on confessions and messy love triangles
mainly looking for slice of life, comedy type but it would be cool if theres any like this with some sort of mystery or thriller added in no isekai or fantasy please and preferably made after 2015 thank you