HOW DO I WRITE A LOVE SONG

Many times our paths have crossed
many times a chance of love was lost
I watch him from afar,I smile and wave
if only he knew it`s him I crave
We are good friends, but i know I want more
I d like a relationship with him for sure
When we talk my heart thumps, in my chest
when he greets me with a kiss ahh! its just the best

We have a connection we both love to write 
songs he composes, poetry for me, our guiding lights
Now he`s asked me to write a song, and my heads in a spin
he says songs are poems put to music, but i don t know where to begin
I have said to him" ok give me a topic I ll give it a try "
he gave the topic of love, oh no! I  thought,I was going to cry
How do I write a love song, without letting him know how I feel?
How do I write a love song, wielding words to him, that are real?

It has been three weeks now I ve written song after song 
but they all show that I care for him,they show, its with him I belong
So the love song has been put on hold, even though I ve written easily, ten
I wont allow myself to show my feelings,I don t want to be hurt again
I know I am being stupid, but i have no confidence, its so low
Ill just continue with our friendship, those feelings I have,I will not show
And if he asks me where s the song, ill give him some sorry excuse 
Ill just adore him from afar, while he sings on stage, his rhythm and blues