Complicated issue with a friend..

This will take ALOT of explaning.
So, my best friend of three years was the first person i told I'm pansexual. He took it well. I told him i had a crush on him ahile back, and something happened that i never thought in a million years would happen. Afew months after i came out he started acting strange, long story short, he "liked" me.
We had afew cuddling incidences. We ended up doing some things that i both regret and don't, which I'll explain later. He then goes to his dads for the summer and refuses to talk to me and ignores me the entire summer. After we started "dating" he decided to move and live with his dad. And before he moved, he didn't even tell me he was in town for the day to get his stuff, but he told everyone else. Iv only heard through a close friend that he decided he was straight and he was just bi curious. I feel beyond used. I was just his testing dummy. It was my first time doing anything with anyone or even dating in general. And he used me, my best friend for 3 years used me and threw me away like trash. The only good thing that came from it was that i think I'm transgender. Something clicked after that and i think I've decided I'm a girl. That is a complete different topic that iv talked about alot on here. He's coming back in afew months for alittle bit. And i don't know what i should do. He used me and crushed me and played my heart just to test if he liked men with me. Iv been so emotionally abused because of this. Yet i still love him. I don't know if he should stay my friend or if i should just cut him out of my life completely. Iv been so depressed and emotionally unstable. I don't know if what he did was intended, but it happened. I'm so torn and i don't know what to do.

 

I have no way of contacting him. I removed him on everything because he would never reply or alot of the times even read anything i sent him. So i quit trying and cut him out completely.
I still don't know if i should be friends with him when he comes back. The way he handled this was absolutely terrible. He never considered how i feel about all of this and wouldn't talk about it the 2-3 times over the summer that i managed to get afew messages out of him. He needs to learn to deal with his issues instead of avoiding them to the point where he cut ME out of HIS life. He as of now, is a selfish, emotionally ignorant person to me.