Remember the phrase, “star-crossed” lovers in the Prologue? What does Romeo foreshadow at this point in the play?

Romeo foreshadows that he is ruled by his passions about love. He is either enthralled by it or, at this point, depressed by it,

I am too sore enpiercèd with his shaft
To soar with his light feathers, and so bound,
I cannot bound a pitch above dull woe.
Under love’s heavy burden do I sink. Act 1 sc 4