This IS in song form in my head,
so reading it as a poem MAY fail you.

He gives you roses and money
and he calls you his honey
and he's awfully funny and true.
He's the guy none adore, but you.

He's a nice guy,
such a nice guy.

No class, no style
but what eyes, what a smile.
Melts away and breaks any heart of coal,
Nice until the day he's dead and cold.

He's a nice guy,
such a nice guy,
He's a nice guy,
if only you knew why.

He's a nice guy without hidden plans.
If all else fails, he can
still come through for you.

He's a nice guy,
such a nice guy.
Any problems he has,
to you, he confides.

*Guitar solo and random 'mmm's and 'aahh's.*

He's not romantic any more,
doesn't show up at your door,
Haven't seen his flowers in ages,
Why, in flirting, with strangers, he engages.
(who knows)

All you know is:
He was a nice guy,
such a nice guy.
Romantic dinners with candles and wine,
Guess you've lost your sparkle,
he has lost his shine.

But overall
and after all is said and done.
He's a nice guy,
such a nice guy.