Kids are little a-holes indeed.

Have you not seen it ? I was oblivious many times when my daughter was young, someone pointed out and I was pretty shocked. But it’s fixable , will take time and energy ( not always easy) kids his age can learn boundaries and respect. Don’t give up

Sorry about your pain, bills and overall stress. Life just really sucks at times and right now you have some shyt stuff... you also have found someone you can love, that’s a big thing.

Hope your lil guy gets to feeling better and you can start adding rules. Start slow and build them piece by piece.