Answer:
Colin's mother died shortly after he was born and this caused his father to ignore him as much as he could, as Colin's presence reminded him of his wife's death.
Step-by-step explanation:
"Secret Garden" tells the story of Mary Lennox, a rich and arrogant girl, who needs to live with her uncle, shortly after her parents die, where she ends up meeting her cousin Colin, a very fragile, lonely and sick boy. Together they find a key to a secret garden and end up discovering many things about themselves and life.
Colin, does not live like a normal child, he is very repressed and limited, very reclusive and lonely. That's because his mother died after his birth and his father ignores him so as not to remember his wife's death.