Peter's mother-in-law

Matthew 8:14-15 - When Jesus came into Peter's house, he saw Peter's mother-in-law lying in bed with a fever. He touched her hand and the fever left her, and she got up and began to wait on him.

I wonder why Peter hadn't (apparently) mentioned to Jesus that his mother-in-law was sick.

• Didn't he know?
• Didn't he like her?
• Did he think Jesus' healing powers were only meant for others?
• Did he "get it" that Jesus hadn't come mainly to heal people's bodies?
• Didn't he think the illness was severe enough to pray; that is, ask Jesus about?
• Was he just too busy, and it slipped his mind?
• Was he just about to mention it, but Jesus beat him to it?

I wonder if anyone in Peter's family asked Jesus to heal her or if he did this miracle of his own accord.