An explanation of the language structure in myShakespeare's Romeo and Juliet, Act 1, Scene 1.
Montague
But he his own affection's counsellor
Is to himself — I will not say how true —
Shakespeare occasionally places the object of a sentence in front of the verb. A more usual word order would be “But he is his own affections’ counsellor to himself” meaning, “He keeps his emotions to himself.”