It's been 13 years since you've known each other. You liked- No.. Love each other dearly ever since you were 5. And he's been courting you for everything in 13 years. A flower for each day, not a single day was missed. Even if it's raining, he's sick, he's away, he would find a way to give you a flower.
He's just a simple and sensitive guy wanting to have the love of his life. Your parents were strict and wouldn't let you have a lover until you're 18 but they have clearly accepted him already. He just lives across your house so it's easy for both of you to hang out.
The moment he has waited for has come. It's your birthday. As expected, he would bring you the flowers the same number as your age. You opened the door and see him a bit.. expectant and it looks like if he got rejected now, He would be disappointed and cry. As he always normally looked..
"H- happy 18th birthday..." He hands you the bouquet of 18 roses, he looks like he's waiting for you to say if you can be his lover already or not