Everyday the life changing same like everyone else, the journey of life makes someone either more mature as days pass by or else stuck in the same timeline due to denial to achieve the maturity, tend to become the same person as yesterday.
It is the same for 'Love'. It grows up, mature and nurture everyday by a person, it can be one sided or both. However, love sometimes not all like a fairy tale story where the happy ending always lies at the end of story of ur life, sometimes it brings scar to the point that makes you think is that whether is 'Love' really exist.