i like my best friend.. how do i ask her if she likes me?

So i’ve liked my friend for a while and i haven’t really told her but we’re really close (like well say we love each other a lot and people usually think we’re dating bc well give each other little kisses(on the cheek or arm) all the time). i’m kinda nervous that she won’t like me back but i know if she doesn’t then we’d still be friends. i just don’t know how to ask!! Today i said i love you and she replied but i said no i LOVE LOVE you and she replied with the same but how do i ask her?