My partner moved in 3 weeks ago to my flat. We've been together just over a year. My DS is 5 (from a previous relationship) DP is always snapping at my DS telling him to Stop this, do that, don't do this, listen to me, etc. You get the picture. I also have days of ranting with DS, he can get very excitable. But get hacked off cos he always seems to be telling him off, rather than pointing out the good things. He even called DS a baby earlier when he thought i wasn't around. AIBU, or is this part and parcel?