The Norm in relationships?!?

Guys I need your advice. I've been with my partner 4 yrs, he was or is the man I've always dreamed of being with, someone funny, caring, loving and attractive. We have our dream little boy, and have just moved into our dream house. I'm very happy yet over the past few days we have had the most horrendous rows, one unbelievably starting over a broken cake stand!, ( Knowing in the big pic this is pathetic). Point is things he's done lately have really started to niggle me, silly things farting, picking his nose, chewing his toenail, he's quite clumsy bashing into things and breaking things - hence the cake stand! this clumsiness I used to find endearing as I can be a little dizzy, which he's always seen as cute and was always upset my previous partner had not). I snap at him alot because he doesn't seem to think. He's the most fantastic father and partner yet he's admitted doing things purposely to wind me up therefore am I right to feel like this?!,