Sekaiichi Hatsukoi OVA

No Love's Like to the First.

Ritsu Onodera meets and immediately falls for upperclassman Masamune Saga. Keeping his distance for the next three years, he unexpectedly runs into Saga at the school library and finds himself confessing, and is even more shocked when Saga says he has no problem hanging out with him. At Saga's house events take an unexpected turn, and Ritsu finds himself in a relationship with the boy of his dreams. In the end Ritsu wakes up at work, now 25 years old and dreaming about a flame from his past who jaded his view on love, and is antagonized by his boss Masamune Takano for falling asleep during a busy time of the publishing cycle. (Source: Wikipedia)

The Quarrel of Lovers is the Renewal of Love.

Hatori and Yoshino have been going out for a year now, and Hatori reflects over that. Yoshino gets a call from his mother who complains over how he never visits. As Hatori plans to go to his parents’ house, Yoshino decides to go along with him and visit his mother and sister. While there, Mrs. Yoshino makes a remark how Hatori and Chinatsu (Yoshino's sister) would make a nice couple, which makes Yoshino jealous. Hatori is touched by how much Yoshino cares for him. (Source: Wikipedia)

In love there is both dotage and discretion

Adversity makes a man wise

Love is lawless

Go to the sea, if you would fish well

Coming events cast their shadows before them

Looks breed love

The die is cast

Absence makes the heart grow fonder

It never rains but it pours

After a storm comes a calm

A good beginning makes a good ending

One cannot love and be wise

Lingering love breeds mistake

Delay in love is dangerous

Follow love and it will flee thee, flee love and it will follow thee

Love is without reason

Actions speak louder than words

Love and envy make a man pine

Love is blind

Love goes never without fear

Love makes the world go round

Love is bittersweet