I tell my love to wreck it all
He wants her to terminate the relationship
The speaker could also be referring to healing the pain from past relationships. The one being addressed was given expectations to heal the speaker completely, even though that request would have been doomed from the start.
The subject of my love likely refers to the girlfriend in his current relationship. During his dark periods, he tells her to dissolve the relationship and give up on him, letting him fall. He revisits the imagery of her holding him up by ropes later on in the song.
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