Well okay I moved to my town about three years ago and that's when I met my now best friends Holly. I love her like a sister we cheer together and spend like a lot of time together except for when she is with her boyfriend Matt... well I'm friends with Matt too. We kind of had a thing last year before he dated Holly but the thing is I never told her exactly what happened between us. I actually lost my virginity to Matt when we went on a lake trip with some friends. I was immediately head over heels for him that night was amazing :)... but we just Kind of hung out like friends until he met Holly and they like started dating all the sudden it's so awkurd because he told me to not tell her what happened because it could hurt her but I love him and her... and he told me that he really cares about me last night... we had sex again and I feel terrible I don't know what to do though I love Matt..

How can you say you love her and then have sex with her boyfriend?
And what kind of boy friend is he that he would have sex with his girls best friend. Sounds like he was just in it for the first time and the second time as well. You need to stay away from him. He is bad news.
This may mean the end of your friendship with your best friend. This is what happens when you don't use your head. What were you doing alone with him anyway?