I think you've expressed the longing very well... Sad but there are some very impressive lines in here.

"The more I try, the harder I’ll fall

The less I give, the sooner you’ll have it all." - I found this very well said.

Oh my, that was sad. Your longing for this person seeps so beautifully through each verse. Do continue to express your feelings about this. I sincerely hope that you are feeling better.
Would you consider reading "Ensnaring Hearts"? I'd like to hear from you.