I am in love. he is a about 60, i am about 40.

He is currently not available. I am single. I know he is the one.

Anyone had any experience like this?

Ah, love...

I'm in love with John Lennon. He's not available either, but I know he's the one

Sorry, seriously...

How long have you known this person? What makes you think they are the one?

Age is not an issue, but...

the unavailability is and as mentioned in the other reply, most of the unavailable stay unavailable

It's wonderful to be in love

But it can be very hard with someone who's not available.

My experience with people who aren't available is that they remain unavailable.

But when you say he is "not available," what exactly do you mean? Married, in a different kind of relationship, just very aloof? Do you see your age difference as important here?