Why had Matthew never married in Anne of Green Gables?

In "Anne of Green Gables," Matthew Cuthbert never married primarily due to his shy and reserved nature. He is portrayed as a gentle and kind-hearted man who is more comfortable with animals than people, which likely contributed to his reluctance to pursue romantic relationships. Additionally, his strong bond with his sister Marilla and their shared responsibilities in managing Green Gables left little room for personal pursuits like marriage.