been down that road before, don't do it bro. you may think because you have a lot of things in common, and that you've known each other so long, that you're perfect together. in reality, the relationship will last just like any other teenage relationship, and it will be extremely awkward, possibly to the point where you aren't friends.
yeah, my gf broke up with me even though we made out plenty of times and now i can't look at her without wanting to kiss her sweet sweet face again
it makes me want to cry knowing that someone who ISN'T ME is going to be kissing her amazing face next