If you need someone to hold on to
The speaker is offering themselves as a source of support for the listener.

I'll help you settle down easy
The speaker will assist the listener in calming down.

And when your day is through
The speaker is emphasizing that they are available to help the listener at any time.

Nothing satisfies me
The speaker is stating that this is their greatest pleasure:

As much as when you're happy
The listener's happiness is what brings the speaker the most satisfaction.

It's true
The speaker is reaffirming the statement they just made.

Nobody does it like you do
The listener has a unique quality that sets them apart from others.

And I would only tell the truth
The speaker is making it clear that they are being sincere and honest.

You know I'm honest you look beautiful in blue
The speaker is complimenting the listener on how they look in blue.

But all the colors bring the beauty out in you
The speaker believes that any color looks good on the listener because they are beautiful.

And when you're running
The speaker is acknowledging that the listener is on the move.

Come run my way
The speaker is inviting the listener to head towards them.

I'll meet you halfway
The speaker is showing their willingness to compromise and be there for the listener.

And love you always
The speaker is promising the listener their love and support no matter what.

Hey baby
The speaker is using a term of endearment to address the listener.

I'll meet you there
The speaker is telling the listener that they will be there for them.

Hey, nothing compares to you
There is no one else like the listener, according to the speaker.

If you ever need the weight off you
The speaker is reassuring the listener that they can help them with any burden they may have.

And when our days are few
The speaker is acknowledging that time is limited and they want to make the most of it.

La la la
This is a nonsensical phrase used in the song as a transition.

It wasn't by chance
The speaker is expressing that there is a reason for their meeting with the listener.

A reason that we both crossed paths
The speaker believes that their meeting with the listener was destined to happen.

There will be a time when
The speaker is implying that something is inevitable.

I look into your eyes and say
The speaker is imagining a conversation with the listener.

I knew
The speaker is stating that they had a feeling about their future with the listener.

That one day I would find you
The speaker is referring to meeting the listener.

And instantly just fall into
The speaker is imagining themselves falling for the listener very quickly.

Cause nothing compares to you
The listener is unique and there is no one else like them.