How to get over an EX?

His name is Shane. I think I still love him. We were friends 1st then became lovers. It was a healthy relationship, he made me feel like this relationship was it, definitely will lead to marriage, in fact we planned everything out.

One day we had a huge fight n I didn't speak to him. He went n took hardcore drug. When I called him, he admitted it. I asked him if he could let it go n never do it ever again. Apparently he said he will never do it again, but he did it anyways n lied about it several times.

I have no tolerance for drug users as I strongly believe once an addict, always an addict. I broke up with him. But the thing is I still love him. Despite the shit he did to ruin everything, it has been 2 years n I m still holding on to it! I tell everyone I have moved on, I m telling myself I m done with him, no 2nd chances for him. He still loves me, but he is also still an addict getting in and out of rehab. So I don't see the point of being with him. I still love him. It's not just that, we both are from different country. He screwed up n it feels like I m paying the price!

When I try to go on dates I feel guilty! I unintentionally friend zone other guys. I still have feelings for him. How do I move forward.? It hurts knowing I truly love him with my heart n drug WON.