I think it's great that you are not getting into trouble for being late to work because your H is "mixed up" about times.
Maybe it was miss typed, but it sounded odd that you said, "...think he is getting curious because he keeps messing up about picking up the kids etc.....
Just an aside on that, would you be worried to ask him to be a little more attentive of the schedule for the kids? While it's nice not to pressure him, it could potentially cause harm to your job. Maybe not... Jest sayin'...
I also think it's great about the truck and the house. Being in control of your own financial destiny is empowering for you on it's own, and it certainly shows your H that you do not need him, financially. While that might not be really important to him, your financial independence would be one less thing he might have thought he had over you.
