Please help me. I love her!

i like this girl we are best mates, I told her I liked her... but I got over her and told her that I did... but my feeling came back... she doesnt know.. she knows and bi and everything.. but lately things have been going weird..? I went to a sleepover with her to my mates house... we got so close.. I was laying on her (i asked if I could and she said yes) while we were laying.... she kept on grabbing my hand softly.. then letting go... that happened alot... she hugged me and kissed me (on the cheek, but she done that to my mate aswell) but while we were laying it was so sweet, and she acted very sweet, it felt like we were going out... but we had an argument (again...) we have lots of arguments but we come back to being friends but this time am scared we wont be friends.... I dont know what to do..please help me

Listen to your heart Dianka. You truly do know. You should follow what it tells you too. From the description, it looks like you won't be the only person she does that with. Ever wonder why she does it with your friend too? If you truly do love her, you will ask her. Spend more time with her and personally get closer. Try asking her best friend if she likes anybody. And as always, if you two don't get back to being friends, then you can always find somebody else. She isn't the only girl in this world.