For those who have accepted the Son of God, Jesus Christ, into their hearts, He lives and manifests His life through those people. Father, Son, Holy Ghost...the trinity. All One. I often think of God as being alone, I don't know why. But, in my opinion, God is not lonely. He is in charge of EVERYTHING, and He created us for His pleasure.
I LOVE your question. Difficult to answer, and extremely thought provoking. Sincerely, Blessings, Sparklea :)