Bad Dog question!

We adopted a puppy a few years ago. She is crazy! But in a way that totally matches our personalities! She's a cuddler, stubborn, ditzy, she's just a hot mess.

We were worried about how she would be with the baby. Because she has always been the baby. Very spoiled. She did amazing when we brought him home! Shocked us both!

But now we are having problems! All of a sudden in the last few days she has started chewing his toys, growling at him and trying to run off with his clothes to chew on them. I have no clue what is up with this behavior! Nothing has changed.

Any ideas? Getting rid of her isn't an option. We are one of those families who are absolutely crazy in love with our dogs!