mixed signals

So my husband has been short and ignoring me most of the weekend. I admit I had a headache Friday and I went to bed shortly after we got home from the school carnival. This morning he got up at the crack of dawn and left and didn't get home (with 3 of our kids) until 20 mins till their bed time and then informed me they were hungry. It was odd too since I know they had three full meals at their grand-parents (his parents) not that I was invited. It works for me because I'm not too keen on spending a ton of time with them or him either at the moment but suddenly he's being a pushy jerk and I'm not sure where that came from at all. I've been on my nicest behavior even when I just want him to go away.