I want to keep this post quite short
So for about 5 years I've known this girl who went to my school, I first started talking to her when I was about 14 and I am 19 now (although we didn't speak to each other or see each other for about a year and a half), we are in the same year, she is only a few months younger than me. After about a year I ended up falling in love with her, I could go on and on about her for ages but like I said I want to keep this short, a few years later my love grew stronger for her even though we have never been boyfriend and girlfriend. We have just been good friends and we talk everyday and often see each other.
In this time of knowing her she has had 4 boyfriends and in the end they have all basically ended up treating her badly. She knows I love her, and I've tried a lot but I don't think it's ever going to happen, even though I would never mistreat or hurt her. I know literally everything there is to know about her. I am just so much in love it hurts and I feel like I can't ever be with her which hurts me a lot and I get really depressed sometimes. I just don't think I'd be able to love someone else as much as I love her and I don't know what to do.
Can anyone give me some sort of advice?