K.R.
I couldn't help but respond to this because my 2.5 year old has started sporadically hitting, kicking and throwing inappropriate things. We are happily married, both working parents and he gets TONS of love from both of us. Our son is a big boy too and I was frustrated that I thought there was no reason for our sweet son to be lashing out like this. His hitting seemed almost to come out of nowhere like he couldn't control some physical urge or impulse. SO I started doing a kind of martial art thought process on this and thinking, "just channel that urge differently". I've started telling my son when you feel like you want to hit or kick give me a really big hug instead! It will help you feel better and you can squeeze me as tightly as you want! A miracle- he is hugging both of us all the time now, (he still pushes other kids away at times, but his intensity seems to have subsided almost immediately now that he knows there is a supported and condoned response to his urge to hit).
Imagine your son is also having these urges, but on top of that he is feeling the tension between your husband and you and he needs more love than ever, not time outs, not punishment, not removal of food, not spanking (which is just reinforcing that hitting is normal)...I am no expert here but it freaked me out to see my sweet and gentle son hitting so I tried this, while gently talking to him and giving him more love than ever to support his frustrations and urges so we could work together on this..
I wish you love, support and above all faith that you will rise above this situation and be the parent who teaches by example and shows love and understanding when it is hardest of all to do just that.
-K.