John knew this was now or never

[alpacinou]

Is this correct and natural?

John knew this was his last chance to tell her how he felt. He knew it was now or never. But it was never. He couldn't summon the courage to put his cards on the table and tell her he wants her.

 

[emsr2d2]

Is this correct and natural?

John knew this was his last chance to tell her how he felt. He knew it was now or never. But it was never. He couldn't summon up the courage to put his cards on the table and tell her he [STRIKE]wants[/STRIKE] wanted her.

See above.

 

[Tarheel]

I might say:

He couldn't summon the courage to tell her he wanted her.