Vvadz

Hello, I'm looking for a specific manga. I remember that it was about two friends from school who happen to be neighbors as adults (living next door to each other) I recall that the ml one day ends up taking care of the fl's cat because her cat was sick and she had to hurry up and go to work that day. Also, the ml was a popular kid at school and the fl isn't, they became friends because they worked together at the library and something happened and they finally grew up apart; then when they met again, the ml now wear glasses and started to being possessive over the fl. If someone happens to know what manga I'm talking about please help me, thank you. <3