C.A.
Hi Jennifer,
These types of behavior do pass if you have can get to the root of it. I'm not sure but my hunch is that he might need some one on one with dad and also there might be some things being learned in daycare. For instance, I enrolled my daughter last year in preschool. She had just turned 3 at the time and she started to become aggressive and flat out disobedient and has a bit of a mean streak. I wasn't sure what had happened to her sweet disposition. So, I decided to sit in on her class to observe her with the other students and it really opened my eyes to see some of the behaviors of the other children towards each other. I also realized that she needed to nap (which she boycotted at 2) and some of it was also due to being overtired and not to mention we had moved twice and had another baby so all of this change and transition was also in play.
These are my experiences but I could only suggest that you keep being consistent and pray for a lot of patience and compassion and try to see what's going on at his daycare and maybe talk with the teachers there to get some insight as well as direction and encourage your husband to have one on one time with him (even if it's going to breakfast every Sat. am as a routine he can look forward to).
I wish you well.
C.