The mirror's image
Looking in the mirror, I can tell that it's time to go home.

Tells me it's home time
The mirror is reminding me that it's late and time to leave.

But I'm not finished
I still want to hang out or do something else.

'Cause you're not by my side
I feel incomplete without you here.

And as I arrived I thought I saw you leavin'
When I got to where you were, I thought you were leaving.

Carryin' your shoes
You were holding your shoes, which could mean you were planning on staying out longer.

Decided that once again I was just dreamin'
Realized that what I thought was happening was only in my imagination.

Of bumpin' into you
Of accidentally running into you.

Now it's three in the mornin'
It's very late at night.

And I'm tryna change your mind
I'm attempting to persuade you to come over or do something with me.

Left you multiple missed calls
I tried calling you several times.

And to my message you reply
You responded to my text message.

Why'd you only call me when you're high?
Why do you only contact me when you're under the influence of drugs?

High
Referring to being under the influence of drugs.

Somewhere darker
In a more mysterious or unknown location.

Talkin' the same shite
Having the same boring conversation.

I need a partner (high)
I want someone to hang out with who is also high.

Well are you out tonight?
Are you available to hang out tonight?

It's harder and harder to get you to listen
You are becoming increasingly difficult to communicate with or persuade.

More I get through the gears
The more I try to connect with you or get closer to you.

Incapable of makin' alright decisions
Unable to make good choices or decisions.

And havin' bad ideas
Thinking or suggesting things that are not well thought through or could lead to negative consequences.

And I can't see you here, wonder where I might
I'm not sure where you are or what you're doing, and I want to find you.

It sort of feels like I'm runnin' out of time
I feel like I'm running out of chances or opportunities to see you.

I haven't found what I was hopin' to find
I haven't achieved what I set out to do or find.

You said you gotta be up in the morning
You mentioned that you need to wake up early tomorrow.

Gonna have an early night
You plan to go to bed early.

And you're starting to bore me, baby
I'm beginning to lose interest or become less attracted to you.

Why'd you only ever phone me when you're high?
Why do you only call me when you're under the influence of drugs, and not when you're sober?

Why'd you only ever phone me when you're (high)?
Again, why do you only contact me when you're under the influence of drugs?