Jim

The missing words are:

l1: ... queer

(this also suggest that for the 3rd line she should have sang He flirts when I'm gone, he flirts when I'm here for the rhyme).

l5: (her) only pal

(I think it's her only elided, but just possibly a long drawn out only)

l17: I think is: He'll never even try

(again rhyme seems to confirm that).

last line: I think starts Move along do,

Mick