Hey Bogi. I like this. It packs an emotional punch, especially the chorus. It's a bit wordy, but could work in an intimate, conversational style. I made some suggestions below where a line is in italics. I wondered about the line, "But I thought it was all flawless." "Flawless" is an unusual word choice, but I think that maybe works to its advantage, making you think for a moment about what it means.  

Even If It's Over
(Verse1)
I didn't want to wake up this morning
What, if you're not there?
I didn't rush to reply as usual
I know it's never gonna be the same
Cause the place that use to belong to you
Has been swallowed up by a strange darkness
I couldn't ever blame you for what happened
But I thought it was all flawless

(Chorus)
You said you'd always be there for me
But yesterday you let me go so easily
I'm just looking for an escape route
Because it hurts to admit the truth
Cause if there's true love then you're it for me
Even if it's over, I love you endlessly
Even if it's over....

(Verse2)
I don't want to close my eyes tonight
You're all I see anyway
Even if I wanna forget about you
There's no place for me to run away
Cause the heart you possessed is now in pieces
And honestly, I don't know what's gonna fix it
I couldn't ever blame you for what happened
It's just got me thinking

(Chorus)
You said you'd always be there for me
But yesterday you let me go so easily
I'm just looking for an escape route
Because it hurts to admit the truth
Cause if there's true love then you're it for me
Even if it's over, I love you endlessly
Even if it's over....

(Verse3)
You know what music means to me
But for you, I'd give up even that
Because now I know, (how'd it take so long?)
You're always been the one I wanted
I don't know if you could sleep when I couldn't
I don't know if that's what's on your mind
And don't know if I'm to blame for what happened
Maybe one day I'll figure it out

(Chorus)
You said you'd always be there for me
But yesterday you let me go so easily
I'm just looking for an escape route
Because it hurts to admit the truth
Cause if there's true love then you're it for me
Even if it's over, I love you endlessly
Even if it's over....

Thank you @Gavin! 🙂