Love.
/lev/
Noun

1. An intense feeling of deep affection.
"Babies fill parents with intense feelings of love"
Synonyms: deep affection, fondness, tenderness, warmth, intimacy, attachment, endearment, more

2. A person or thing that one loves.
"She was the love of his life"
Synonyms: beloved, loved one, love of ones life, dear, dearest, dear one, darling, sweetheart, sweet, angel, honey, more

Love is a weird thing, so weird that it can't be accurately described. Some people have a tendency to run away from it, do things that they normally wouldn't do but they become scared. It's not a physical or emotional feeling, it just is. Guys tend to fall way harder but less often, girls being the opposite. But occasionally, it will be the girl who loves the most. She gets butterfly's, nervousness, hope, stutters, and all the other symptoms. Sometimes a girl won't realize what she had till she doesn't have it, she'll take him/her for granted. Love is something that you can't take for granted, it just doesn't work that way. You both have to be willing to drop everything to be there for that person. It's a two way story. If one of you isn't trying it doesn't work. People who claim they love someone then cheats on them doesn't know what love is, or just doesn't want to try. When you love someone you know that you'll never be able to go another day without them. You won't be able to go a day without hearing their voice, or at least seeing them.

Johnny Depp said-"If you love one person but fall for another, choose the second person because if you truly loved the first, you wouldn't have fallen for the second."

The saddest thing about love is, your first love is always apart of you but never lasts.