If you have somebody that you love , but they already have someone , then guess what ? You should give up on her/him.
It’s no use for you anymore to try to chase an illusion.
You don’t know them anymore , they’ve changed. Maybe in a bad way…
It’s kind of like a vicious circle . Let’s say you’re a guy who likes a girl , but that girl just loves another guy. They begin to form a relationship and you get to the perimeter.
You start to treat yourself as a failure , the couple begin to focus too much on their relationship . This means they forget that they have a seperate life , and they stop working that hard or doing anything else that is important… (‘sigh’ true story)
So my suggestion is to get busy . Get so busy that you don’t really care about them.
Also , disconnect from them , for real. You don’t want to hurt yourself more . ( ~ You don’t give drugs to a drug addict. )
I know it’s a hard pill to swallow, but it’s for your own sake .