In my dreams, creeps up a guy,

Mysterious he is, as I know him not.
He smiles and I gaze-with a heartfelt/heavy? sigh,
Daydreaming often of a true love knot.

Earlier I posted this poem up and writeacher told me to change the second line. I still can't find a substitute that would fit, because when I change that, the fourth line also has to be changed. Can someone please help?
Thanks
-MC

Then change the first line if you can't change the second!!

A guy creeps up in my dreams.
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