Billa Baggins was a good hobbit; at least she tried to be. She also did her best to be a loving wife even if her former husband didn't try to be as good on his end. Billa was constantly having to go into Bree to settle some debt of his, wasting all the gold her parents left for her. Yet, all of Hobbiton thought her husband was a dear and a brave hobbit for dealing with her. She wasn't sure what lies he spread, and she didn't really care. She even ignored the bruises he would sometimes give her when he grabbed her too hard.
When a trip to Bree went bad and ended up in Billa being attacked she had enough. Though she wouldn't really speak of what happened to her, she didn't like being touched after words and worried about her physical appearance. Somehow her husband twisted it back on her, that is was her fault. Weeks later when she found she was with child he raved it was a humans and she was cheating on him.
Billa couldn't believe the nerve of her husband, to think she could even carry a human child was absurd; let alone that she would cheat on him. He left shortly after that leaving her alone in Bag End and the center of all the gossip. Thankfully she wasn't alone though. Her neighbor Hamfast was there for her and so was Gandalf an old and wise wizard. Not much later her nephew Frodo came to live with her after his parents passed. He is like a son to her and he is always defending her honor.
Even still hearing people whisper behind her back and the thought she was pregnant and devoiced almost broke her. It was the most un hobbit like and was something that only happened to human women. She was ashamed of herself. Depression was slowly poisoning her when Gandalf appears one day to ask her a favor that will change her life forever; hopefully for the best.