So this doesn't work in poem form but it's written to be song lyrics.

Lying in her arms,
Locked in her touch,
Feeling the embrace of someone I could have lost,
It's just a,
Sad way to look at the world,
But while I'm alone with her all I think of is you,

I cannot lie I did it to make you jealous,
But all the time we spent together you never cottoned on,
To my reasoning and to my subtle signals,
It's all a game we play,
But I'm losing it anyway,

Tired eyes and a look that could break the world,
But I alone truly know what it means to spend,
A night with you that I never wanted to end,

I cannot lie I did it to make you jealous,
But all the time we spent together you never cottoned on,
To my reasoning and to my subtle signals,
It's all a game we play,
But I'm losing it anyway,

I told you that I'd found someone,
To make you love me,
But all it did was make you say that you're happy for me,
It's all a lie that I just wish I could take back,
But when I think of what I've lost it gives me a heart attack,

You'll never know now just what you mean to me,
I hope you understand all that I'd do for you,
It would never cost you more than our friendship,
To tell me that you don't hate me would mean the world to me,

I cannot lie I did it to make you jealous,
But all the time we spent together you never cottoned on,
To my reasoning and to my subtle signals,
It's all a game we play,
And I've lost it all today.