Nikky's "You'd" is about being treated as disposable by someone you loved far more than they loved you. The speaker lines up three comparisons, and each one makes the imbalance a little sharper. The other person is "perfect" while the speaker is only "practice," a rehearsal before the real thing. Then the speaker becomes a chew toy, shaken until the squeak runs out. Finally, the speaker is a passenger in a life where the other person is the driver, picked up and kicked off at whim.
The tone is bitter but also sad. The speaker sounds hurt and a bit worn down, and the repeated "You'd" suggests this happened again and again, not once. The trailing dots at the end of each pair of lines make it feel unfinished, as if the pain hasn't stopped. Notice that the speaker never says "I deserved better." The poem just lays out the facts, and that quiet delivery makes it hit harder.