It seems you are doing well. Don't over do it, but keep him abreast of your schedule. Thank him when he does something like cook the meals. Make sure the kids know that you love him and why. Does that last one seem odd? Often compliments given to a 3rd party have far more impact that compliments given directly to the person.

I would recommend that you touch him when you can. Simply put your hand on his arm, or pat him on the back as you walk by, simple things. Most of us guys are very aware of touch and sensitive to it. It can be a powerful subliminal way to convey your feelings for him.

Hang in there.