Fenrir's birth was the worst.
Before he took his first breath, everyone was already wishing for his death. His demonic god father took him just to play with his life, testing how true the prophecy about him would occur. While his giantess mother only cares for her husband's affection and doesn't have an inch of interest in her child.
Fenrir grew up alone.
He struggled alone.
Not until he met his wife, Ethel.
Ethel is a strong and willful giantess who doesn't care about the norm.
She doesn't care about the prophecy and didn't judge Fenrir based on a mere foretelling.
They both fell in love with each other and birthed twin giants.
Even though Fenrir wanted the best for his wife and children, desiring a peaceful life with them, their lives didn't go easily, especially since the malicious gods kept on watching them.
It became worse once Loki convinced him to defeat Jodin. The supreme god of all beings