Left drunk on her exes car windscreen // I am not a cuckoo

[mrweiner]

Left drunk on her exes car windscreen // I am not a cuckoo

Edit 1
Screaming, crying, crawling man
I took your nest because I can.  nice and lightly sinister
Her whispered whims no longer yours,
She’s lost yet found; for me she chores.   The meaning here slips from me a bit, although I don't exactly know why. Could be that "lost yet found" feels a little forced/clichéd.
Displaced, dismayed, I know your pain:
Deserved, I’d do the same again.   Had some trouble with the meter on this the first time through, but it made sense when I went back again.
The hand you dealt her? Boastful, vain.
You wronged her, conned her, yanked your chain.  I like the idea that somebody yanked their own chain. Nice.
She wondered, wandered, crazed yet sane. I like this line, but "crazed" feels like a mouthful of a single syllable. Could also be the "-ed" into "ye-" sounds that make it feel off. Maybe it's the combination of the two. That being said it certainly fits the form.
Your loss you caused. I made my gain.
But no, a cuckoo I am not
No chicks were slain, nor laid to rot. I enjoy these last two lines as the ending of the poem, but the phrasing/word choice ("a cookoo I am not" and "nor") feels a bit out of place in the context of the rest of the poem. Like...the way those lines are written feels more "dated" than the grammar in the rest of the piece. This could certainly just be personal preference.

Overall, I like it a good deal! I feel like when I write poems like this with couplet rhyme schemes they get scoffed at, but I like the form a lot. I think the choice of form lends itself to the style and topic of the poem overall. I definitely enjoyed the "voice" of the piece. I couldn't help but picture it being said mockingly by a bird from a tree branch since, of course, you said you were not a cookoo. Thanks for sharing!