I know I'm kinda late, but read my story.
I was in a similar situation in highschool, I went out with this girl freshman year, I was really shy at the time and told her I wouldn't do boyfriend related stuff with her, I ended up getting dumped.
A year or so later she started dating her current boyfriend, they have been together for almost 3 1/2 years or something to that extent. Sophomore year I didn't have any classes with her and just avoided her when we walked past. Well, as my junior year comes about I'm becoming the "class clown" I guess you could say, I was a goof ball (still am haha ) I started opening up to everything, girls or just talking to people.
Anyways, Senior year we ended up having 2 clasess together, her relationship of 2+ years was kinda getting dull like some do over time, arguing etc. I was a fool and started talking to her in class, and started to have those old feelings again.
She being bored, tired or whatever it was with her relationship started to play around in class with me, joking etc. We became good friends again, talking on FB and such. Well.. things kinda progressed from there, we ended up kissing in an empty room at school. Wrong I know.. but I'd always had crazy feelings for this girl.
She ended up telling her bf cause she felt guilty and such, he got pissed and we settled it without fighting, not that I wouldn't fight, but fighting is preddy ignorant unless necessary. Self defense, etc.
Well one night months later (the next semester) I had another class with her, guess what... same thing happend but "worse" We talked on the phone everyday after school for hours. Her boyfriend told her he "needed a break" In her mind that meant they were over, so one day on FB I was like "Hey lets go hangout, just as friends" She actually went through with it, soon as she got in the car I knew shit was gonna go down..
It was lighting outside, raining like hell. I told my parents I was goin' to play Xbox with my friend at his house. Well me an her pull down to the lake and I lead her to the trail in the woods and we just sit there under a tree and look out at the lake, awwhh so sweet... lol Anyways we end up making out for hours, and then a cop shows up, I was so lucky that I worked at a gas station near by, so he asks me "What yah doin' Jason?" Me: "Just talking" Police: "Well buddy, I'ma have to ask you to go "talk" somewhere else" lol xD
Anyways we leave and go back behind my high school and things sorta happened... We didn't have sex, preddy much 3nd base. My mom called (HUGE COCKBLOCK) lol, so we kinda wrapped it up.
Guess what she did... told her boyfriend, so we fought and it was an even fight even though I don't care who won, only ego boosted faggots care about fighting.
Well.. they whole point in the story is to LET HER GO it's probably not going to happen. What I typed sounds mostly like sexual atrraction, but it wasn't I really cared for her, but you can't have something that belongs to someone else..
TL;DR Hope my story helps in someway.
P.S. I have since met the love of my life and we have been together for a little over 5 months. <3