William kept quiet as he knew the reason behind it but he didn't wish to mention it to Steve as he promised his wife, he would never mention it to Steve.
Steve's mother knew Erica loved Steve wholeheartedly. She saw true love in Erica's eyes for her son.
She once confronted Erica about it, her actions were enough to confirm her suspicion.
At that time, she promised Erica she won't tell this to Steve to save her from embarrassment.
In her last days, she mentioned about this to her husband, father and father-in-law. She expressed her wish to see Erica marry Steve.
That was the reason why William's father expressed it as his last wish. He wanted to fulfil his daughter-in-law's last wish.
Steve's mother never wanted to force her son to take a decision this way so she never used her illness to emotionally blackmail him.
