God's attributes are perfect in their balance, since God is perfect. You can't have love without anger, you can't have grace without wrath.
He is the author of all emotion and actions, and only He has that perfect balance, because, well, He's the only one who is perfect.
You are confusing the creature with the Creator. You are saying that the uncreated God is subject to His own Creation -- by necessity! Moreso, you are using yourself as a model (and proof of what God is like): since to you love must be balanced by hate, so then you surmise God must be "just like you."
It's like a table comparing itself to the carpenter! Being a Protestant of some sort I suppose, you surely have missed that part of the Scripture where God reveals that His ways are not our ways and His thought are not our thoughts! (Isa 55:8)