Listen to the MIDI. I think I got the meter right.
I am... You're missing 1-3 syllables in that line, at my count... I did have five semesters of music theory in college too, I'm not just guessing.
Well, sorta. Check syllable stresses:
I don't CARE if I EVer get BACK.
AT least IT wasn't HILLary [W]ITCH. [DFU]
[At] LEAST it WASn't that HILLary [W]ITCH. [Thoughtomator]
Moving "at" to a pickup note (or leaving it out altogether) improves the word stress pattern for the next few notes, even if it necessitates adding another syllable elsewhere.