I have nightmares each week about that Friday in May
This line expresses the recurring anxiety and trauma caused by a specific event that happened in the past.

One phone call from you and my entire world was changed
The significant impact and upheaval that resulted from a single conversation.

Trust that you betrayed, confusion that still lingers
The deep sense of betrayal and ongoing feelings of confusion.

You took everything I loved and crushed it in between your fingers
The utter destruction and devastation of cherished aspects of life.

And I doubt you ever think about the damage that you did
The realization that the other person may not acknowledge or reflect upon the harm they caused.

But I hold on to every detail like my life depends on it
The intense fixation on remembering and analyzing every aspect of the situation.

My undying love, now I hold it like a grudge
The transformation of enduring love into a deep-seated resentment and unresolved anger.

And I hear your voice every time that I think I'm not enough
The lingering impact of the relationship on self-esteem and feelings of inadequacy.

And I try to be tough, but I wanna scream
The struggle to maintain a facade of strength while experiencing overwhelming emotions.

How could anybody do the things you did so easily?
Questioning the other person's capacity to carry out hurtful actions without hesitation.

And I say I don't care, I say that I'm fine
Asserting a lack of concern or emotional distress, despite the inner turmoil.

But you know I can't let it go
Acknowledging the inability to release the past and move on.

I've tried, I've tried, I've tried for so long
The lengthy and persistent effort put into attempting to overcome the pain.

It takes strength to forgive, but I don't feel strong
Recognizing the inner strength required for forgiveness, yet feeling incapable of reaching that point.

The arguments that I have won against you in my head
Replaying imaginary confrontations and victories over the other person mentally.

In the shower, in the car and in the mirror before bed
The various scenarios in which these internal dialogues occur.

Yeah, I'm so tough when I'm alone and I make you feel so guilty
Experiencing a false sense of strength when alone and creating a sense of guilt in the other person.

And I fantasize about a time you're a little fucking sorry
Imagining a future moment when the other person expresses remorse or regret.

And I try to understand why you would do this all to me
Seeking comprehension of the motives behind the actions that caused harm.

You must be insecure, you must be so unhappy
Attributing the other person's behavior to their own deep-seated insecurities and unhappiness.

And I know in my heart hurt people hurt people
Recognizing the cycle of pain and how it can lead individuals to inflict it on others.

And we both drew blood, but, man, those cuts were never equal
Acknowledging that while both sides may have caused harm, the damage inflicted is not proportionate.

Ooh, do you think I deserved it all?
Questioning whether the suffering endured was deserved or justified.

Ooh, your flower's filled with vitriol
Portraying the other person as harboring intense bitterness and hostility.

You built me up to watch me fall
The perception of being deliberately uplifted only to be torn down and hurt.

You have everything and you still want more
Highlighting the other person's insatiable nature despite having an abundance.

I try to be tough, I try to be mean
The ongoing effort to maintain a tough and stoic exterior despite inner vulnerability.

But even after all this, you're still everything to me
Despite the pain inflicted, the other person continues to hold immense significance.

And I know you don't care, I guess that that's fine
Accepting the indifference of the other person, even though it still hurts.

But you know I can't let it go
Despite wanting to move on, the inability to release the lingering feelings.

I've tried, I've tried, I've tried for so long
The persistent and prolonged effort made to let go of the past.

It takes strength to forgive, but I'm not quite sure I'm there yet
Recognizing the strength required for forgiveness, but feeling uncertain if that point has been reached or not.

It takes strength to forgive, but
Emphasizing once again the strength needed for the act of forgiveness.