You're talking about the memory loss, aren't you? That's... Less of an issue, I think.

[His dedication became blind, dangerous desperation long before he arrived in Wonderland. He's only just barely holding it together as it is.]

When someone is important to you, I'm sure that nothing could ever pull that away. Not completely. No matter who tries to do it. They'll never be able to steal your family from you. Not where it matters.