Michael didn't necessarily want to move away from her. In fact, he was completely entranced by Jack. She was like an unknown figure to him. he wanted to know who she was and he didn't know. This was the flight he was taking in his attempt to find out how his daughter behaved and as for now, he wasn't pleased. He knew he hadn't always been on Mel's good side but he'd need to stick with it if he planned on knowing her.
He wanted to retort to Mel's polite ushering of him out of the way, but he was completely caught off guard when Jack giggled and spluttered at him. He looked down at her as she stared curiously at him. It was like a mirror. His eyes were exactly the same as hers and the feeling was overwhelming in such a manner that Michael had to look away. "What's she like?" he said quietly, although it was a rather broad question to ask. He knew Mel was going to go on forever explaining, but he didn't quite mind that.