<human>: Condense the text into a few key points

I had two chances with her: Once freshman year of college, but I had no idea she was into me and I wasn't very keen on picking up those types of things. The second was a whole clusterfuck when I had some ridiculous existential crisis that I don't want to get into here. Thing is, she is with a guy now. He's a really great guy, and I hate him (if you know what I mean). Let me clarify that she is one of my best friends in my circle of friends. When her boyfriend isn't around, we kinda flirt with each other, and she's always throwing me these little hints that mess with my head. She knows what she's doing. Trust me. (My best friend/roommate tells me I look too far into it, but he's not experiencing it like I am. I know what I know.) She can tell I'm crazy about her, and as much as I want to be, I also don't want to be. I always go through these phases when I don't see her for awhile and I'm like, "Hey, I'm over her!" Then the minute I see her and talk to her again, my heart goes berserk. This may sound weird, but I want to marry her one day. A day that is very far away from now. I've never felt more certain about anything. We goof around like no one's business. We're a couple of dorks. I love us. **FUCK!** Sorry. 

Anyway, I was wondering if there was any advice on how to get over her (at least for now). Yeah, I know, meet other girls. But what else can I do? I need some good advice, otherwise I'm going to be drunk as shit on my 21st next month and give her a mixtape of a playlist I made to express myself to her, and that would ruin her relationship she's in now, and possibly ours. I could never do that, but I still want her to hear the music I chose. Sorry, strayed off a bit there. HELP ME! <:)
<bot>: I'm in love with one of my best friends who is in a serious relationship and I need to get over her. How?