My gf is jealous of my dog.. who is in the wrong, me or her?

I've been with gf for almost a yr now and I love her more than anyone I've been with yet my dog seems to be an issue in all our problems. I will admit to spoiling my dog, I don't go overboard with the mani/pedi **** but she is on my mind when I'm away and the first thing I want to see when I get home. My gf is extremely jealous of the attention I give my dog over her. My dog is 7, there's no changing how I treat her and the love I give to her. What do I do about the jealous gf? Should she just accept me for who I am or is this my problem?