"Getting Out" or Getting Worn Out? A Poem with an Exhausted Tone

"Exhausted, we gave up; escaped"
This poem's tone seemed to be exhausted or worn out. The first half seems to indicate that the couple became tired of trying to live together. The speaker says it was like they were inmates as if they were forced to be together and trapped in this unhappy marriage. As this continued they stopped speaking and their hearts grew tighter. But I don't think that the speaker puts the blame solely on one person or another, but rather they both had part in the marriage crumbling. So after a time the author describes how they separate and one goes  to live in an apartment alone. The next stretch of time shows a different side of this exhausted tone where it seems they grow tired of moping around, listening to depressing songs, and avoiding packing up their belongings. Now the speaker finally admits it was time to talk things out and finish things. The final stanza has a much different feel than the first two. The first two describe the pain of the relationship and the feeling of being sick of dealing with it all; however, the final part discusses the pain of ending the relationship. I think the speaker and their partner both know that they can't stay in the relationship, but it is still hard to see it end. The final part shows a tone of exhaustion of all the fighting and hate and denial. They finally accept that things are over and have to let go. The tone indicates a respect for the other person, but an acceptance that it is over. Overall the tone makes the difference between a scorned and bitter divorcee and a person who has matured enough emotionally to realize they had to move on and get out of this relationship.