Hi,
It’s good that you are spending time thinking about why you want to be his girlfriend, and why he should be your boyfriend. You are both young and it’s smart to spend some time thinking about whether you could imagine being married to this person. The boyfriend/girlfriend relationship is only meant to be the start of a relationship leading to marriage.
It is quite possible to be good friends without dating. By being good friends, you can find out if you have got something in common which you can build on. It’s important to talk with each other, go for walks together, and spend time with others. If you can’t be good friends, you won’t be good partners.
You can read some of the other answers we’ve given on the theme of love and relationships, such as: