How do you define "first love"?

A comment prompted this post. In a previous post "Best music ever", I wrote about a lovely piece of music that brings back memories of my first real love.
I didn't name them, or how the music related to memories.  OK, I did put that the person in question had just re-married.  But in this day and age, there are so many people who re-marry.  And at my age, if I met a man who had NO history, I'll be frank, I'd be extremely suspicious and steer a wide berth of him.
My first love was the innocent type and the most daring thing we did was share a kiss, just a kiss, nothing intense at all.  We'd been for a walk around where he lived, and still lives now, and it was time for my Dad to collect me...so...a quick kiss on the lips before I left.  After that day we were never even in touch with each other until around 29-30 years later.  Again, all we did was chat, but due to advanced technology, via e-mail.  And most of the time we just chatted about when we were young.  Yes, when we'd been teenagers we'd danced together at parties  that we'd both been invited to, but proper waltzing, and a bit of disco dancing.   Until I was about to move away I had no idea he thought anything of me other than "one of the boys/group", (I was a terrible tomboy back then,) but was OK with dancing with him.  I thought he had no idea that I really liked him, turned out he didn't and thought I was "too clever" for him.  (I went to a grammar school, he went to a comprehensive school,).  I just thought I was too bookish and mousy to be even noticed.  When we both sussed out that we liked each other, there was only three weeks before I was due to move away.  So, we didn't see each other as boyfriend and girlfriend, yet we wrote to each other for a while and eventually met for the only date we ever had.  So, yes, he was my first proper love. The music will always make me think of him, as he is a musician, and it never fails to make me smile.  And if anyone in either his life or mine has a problem with that.....well, they don't understand how innocent my first love was.
A memory of your first love is precious and in my case there is no reason for anyone to resent that the person in question was my first love.

Best Music ever?

Is there something that just gets you singing or pum- puming along?  And no matter how down you feel it just takes you back to a time when you had no worries?
Well.....I have one...it not only takes me back to the time when I had no worries, but to the time of my first ever real love.
Now...should I embarrass him forever by naming here as my first ever love?
What do you all think?
But naming him might not embarrass him, I'm happy that he has married his partner of many years...after all we lost touch and had no contact for around 29-30 years.
But he'll always be the first person I ever truly loved.
I wonder how he would reply?

And the music? Scheherazade by Rimsky-Korsakov