<human>: Hi everyone.

Where to begin? I met this girl about 2+ years ago. We got to talking and became extremely close. About 6 months into the friendship I realised I was in love with her. However, I was friend zoned pretty bad.

Things got worse, however, when she got together with someone who totally went against everything she said she looked for in a guy. Thats not the worst bit though.

That guy was my best friend who I constantly came to when I needed advice. He backstabbed me late last year and it ruined me. My grades went to shit and I became sort of reclusive (I have recovered in this aspect). I had a relationship that I was not emotionally invested in for five months to try and get over this but to no avail.

I even went as far as to 'forgive' my friend to try and convince myself I was over this, and witnessed how poorly he treats her when he was on the phone. (she requested to speak to me and we talked for about an hour... I wasn't sure if I'm looking too far into this but I thought that was a little weird. She asked me to sing her a goodnight song too.)

I'm still friends with the girl too, although it's starting to hurt again, because I honestly do think I would be better for her. And yes, I know that people will tell me I'm not, but hey, just an opinion which is slightly biased.

What do I do? She and my 'friend' have been together for eight months now and sometimes it feels like she uses him for the physical relationship and me for the intellectual. 

I should mention he lives in a different country and frequently tells me about how he likes other girls. She frequently tells me that she and him are 'running out of things to talk about', whereas that never happens when I talk to her (her words, not mine).

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I have been in love with this girl for two years. She dates my ex-best friend (she knows) and their (long distance) relationship is not the best. What should I do?