He could not stay with me (parody)

(with apologies to A. E. Housman)

He could not stay with me; and it’s getting me under.
He could not stay with me and I am amazed at his gaze,
I shook his hand and gave my heart in blunder
and went with half my life into my days.

[Reference: VII “He would not stay for me; and who can wonder? ” by A. E. Housman.]