I don't think that my wife is the love of my life.
How did you figure that out?
My libido is too strong.
It's sad that you don't think you love your wife. It sounds like you're emotionally cheating on her, or maybe really cheating?  You should have an honest conversation with your wife about your marriage.
I love my wife and she's the only one who knows my real feelings.
If you love your wife, then you wouldn't cheat on her, as that would put her through a lot of pain. If you feel like you're having problems with your libido, then maybe you should speak with a mental health professional.