Great life

My heart beats fast, my soul feels alive
With you by my side, everything thrives
In your eyes, my future I see
Forever with you, is where I'm meant to be"

Or another one:

"Our first day dawns, with promise bright
Together we'll walk, through morning light
With every step, our love will grow
In your arms, my heart finds its home"

Feel free to modify or add to make it more personal!