No, she is not the wife of God anymore than we are. But realize, God created the woman who would be His mother. She gave flesh to His divinity. She did not fear the angel, and said, "Fiat!" God created her to be His mother. She was not some simple tool, but the woman who bore, bathed, watched, cared for, cried for, loved, and cuddled the Lord. Maybe we Catholics go too far in your eyes, but to us, protestants don't even seem to honor or have any love for the mother of Christ, who was to be called blessed throughout ALL the generations.
She was more than a vessel, what a cold word. Christ called her, "woman" as Adam called Eve woman. Christ was the new Adam, who do you think was the new Eve whose offspring would crush the head of the serpent? We believe Mary is the mother of the Church, because she was the mother of the King. The mother who was foretold to Eve. The Ark of the New Covenant, the woman of Revelation 12. She is not God. She cannot perform miracles. But she is blessed, most blessed of all womankind.