God's love appeared as was pointed out earlier, Titus 3:4. We try to explain it away as benevolence or some other way, but God is incomprehensible. I have no problem seeing the universal love for mankind shown through His sending His Son. Why is that hard to grasp? Our being chosen is not a greater love than what the non-elect received.

Why were we created? Wasn't it to express the glory of God?

Romans 9:21 Or does not the potter have a right over the clay, to make from the same lump one vessel for honorable use, and another for common use?

Our being saved is an expression of God's love, but also an expression of His sovereignty. Our being saved is no less love than He showed to the unsaved, it is just that we were made able to respond to it. He didn't love us more, just that His love flowed through us. It is Christ in us.

Because God is unchanging, His love also is unchanging. The difference is the application, or quite simply, our election.

Hisalone
Matt. 6:33 But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you. KJV