I think the original song is by Carpenters or maybe Neil Secada. Here it is a fragment from the TV series "The Partridge Family", a family of musicians.

Down, doobie doo down down
Come-a, come-a
Down, doobie doo down down
Come-a, come-a
Down, doobie doo down down
Come-a, come-a
Down, doobie doo down

Don't take your love away from me,
Don't you leave my heart in misery,
If you go then I'll be blue,
Cause breaking up is hard to do.

Remember when you held me tight
And you kissed me all through the night
Think of all that we've been through
Cause breaking up is hard to do.

They say that breaking up is hard to do,
Now I know, I know that it's true
Don't say that this is the end
Instead of breaking up I wish that
We were making up again
I beg of you, don't say goodbye.
Can't we give our love another try?
Come on, baby, let's start anew,
Cause breaking up is hard to do.

They say that breaking up is hard to do,
Now I know, I know that it's true
Don't say that this is the end
Instead of breaking up I wish that
We were making up again
I beg of you, don't say goodbye.
Can't we give our love another try?
Come on, baby, let's start anew,
Cause breaking up is hard to do

Down doobie doo down down
Come-a, come-a
Down doobie doo down down
Come-a, come-a
Down doobie doo down down (Breaking up is hard to do)
Come-a, come-a
Down doobie doo down down (Breaking up is hard to do)

BREAKING UP IS HARD TO DO= Here you can see that in English we use the -ING form when the verb is the subject of the sentence. The subject of this sentence is BREAKING UP. To break up is to stop a love relationship.

MISERY= Deep sadness.
I’LL BE BLUE= I’ll be sad.
CAUSE= Because.
HELD= past tense (hold-held-held): hug, embrace.
ALL THROUGH THE NIGHT= All night long, all the night.
ALL THAT WE’VE BEEN THROUGH= All that we have suffered, all the difficult situations we have lived together.
I WISH THAT WE WERE MAKING UP AGAIN= The verb WISH is followed by a past tense. MAKE UP is the opposite of BREAK UP, it means to solve past conflicts and be friends or lovers again.
ANOTHER TRY= Another chance, another opportunity.
START ANEW= Start again, make a new start.