If not now then When

If said to When 'If I win the lottery I will be happy then'

'When the Sahara freezes over replied When.  When I find the right partner I'll be happy If, you know what I mean ?'

'You are right. If we could just find ourselves the right soul mate we'd be happy When.'

'If, I need another a holiday - will you come with me again ?'

'Sure, it will make us happy
- When ?'

If not for if and if not for when, would we be happy ever or now and not then ?