He's trying to ease his conscience. He said it... he feels ashamed of how he treated you and the kids.
Saw it a lot with my XH before the divorce.. it still comes out occassionally.
THe Dr. Jekyll/Mr Hyde syndrome... you know what I mean.
He's trying to apologize in his own wierd way (was receiving gifts one of his love languages or yours?)
I think you handled the texting beautifully.. and if it were me I'd be confused and feeling like my chain was being jerked for all the reasons you listed.
hugs & luv ya Bridge
Divorced 03/2010 Mom to two amazing kids
Taking the road less traveled because those encountered on the way may be just as unique.