Is Coco spayed, Marg?

Ginny

No, she isn't spayed. We thought perhaps she was coming into heat, but it has been a few weeks. Too long of a period of time.
Now this morning she pooped on the floor. Again more uncharacteristic behavior for her. Now I question any piddle I find that I attribute to Jovi if it a small amount or Bubba if it a larger puddle...

If you don't intend to breed her, then get her spayed. Some of her behavior I saw in one of my dogs when she came into heat.

It sounds like she needs a refresher course on obedience training but I would make both puppies go thru the training at the same time. Be sure to teach all three dogs the 'drop it, leave it' command.
Also, I wouldn't crate one dog along with its food if the other dogs are around. Either isolate her to another room or crate everyone during feeding time.

Before starting any training I would first have her checked by a vet to rule out any physical problems.

IMO, these behaviors are hormonal and territorial. Coco may be exerting her dominance within your small pack, just so it is clear to the new kid. :) I would suggest you spay her and neuter the little guy. I also think it is important to immediately reprimand her negative behavior so she learns just exactly who is the alpha in her pack. Namely you and the other humans. :) I have seen this kind of behavior many times in my pack of 3 intact females, one intact male, one neutered male, and puppies occasionally from all three moms. IMO, these behaviors are not uncommon and often can be solved with behavioral training and altering the dogs. Hope this helps. :)

Ginny

I do anticipate breeding them, at least once, so getting them fixed is not in the immediate future.
Her behavior doesn't seem to be directed at the baby though, more of a protecting of her food from Bubba who is now penned up. She just seems so 'frantic' these days. even if you reach to pet her, she doesn't always allow it, she pulls back away from you. Most of the time, not all the time though. Sometimes she will 'allow' me to have her on my lap and pet and love her.
@Annz why specifically those commands above the come command or others?

I think the drop-it command is one of the most important commands to teach your dog. You mentioned your dog snapped at a relative when they tried to retrieve a bracelet she was chewing on. If she knew the 'drop-it' there wouldn't have been the chance of someone getting bitten.
It also becomes a safety issue for the dog. If you ever take a dog out walking/running there are too many instances where they may come across something they feel they should eat or chew on. In some areas, one never know when poison has been used so your dog dropping whatever is in his mouth can be a lifesaver.

Thank you Annz for explaning, I hadn't considered either of those scenarios!

I just had an epiphany a little while ago in that before I got Jovi for my Daughter, Coco was the be all-end all. My DAU and SIL used to leave a few minutes early for work in the morning to play with her even. I just watched the interaction, or actually lack thereof with my SIL and Coco just now. Dau took Jovi out to do his business before they went out (I puppy sit) and SIL was in the house with Coco. She wanted to play, but his interaction with her was uninterested. She dropped a toy at his feet and he kind of soccer kicked it and then he went outside and left her at the back door to wait for the three of them to come back. I let her out at that point as I felt bad for her.
Am I possibly onto something, or grasping at straws?

Thanks,
Marg