MLC/depression fog tends to screw up their sense of reality. Of course, he loves her in the moment because it is a fantasy, the euphoria of having someone young and who doesn't know him like you do, makes his high a higher one. She's most likely stroking his ego and making him feel very important these days. To him, she's his soulmate, his everything. That may change as he travels the road of mlc.
Him questioning you about dating...he's hoping that you are doing it because it will then appease his guilt for what he's doing. He's curious to know what you are doing and he's hoping that by asking you about dating, the seed will be planted and you'll come to realize it's over w/him. Don't buy into this scenario.
I know it's tough, but you need to allow comments, questions, etc. to roll off your back for now. Try not to over analyze his every thought or move....put the focus back on to you and your family and above all else...protect your assets.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
