Something I don't understand

Why do people who love each other fight? I'm not talking about Court and I for those of you jumping to conclusions. Hayden and Mason are the best of friends, but at the same time, they just can't seem to get along.
I have pictures of some good moments and you'd think it was like this all the time.
Then this happens.................
This is Mason's arm. It's proof that Hayden is naughty too. I posted earlier about a play date we had and the battle wound that Mason left on Hayden's leg. Pay back? It's so frustrating that they can't just play nice most of the time. It's something that will never make any sense, but it still makes me sad. I don't like it when my baby is naughty.
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Something else I don't understand. Why is my kitchen not done?!?! I haven't posted any new picture cause nothing has changed since I last posted pictures. I was so proud of him that he worked so hard and so fast and now the finishing touches are waiting. Oh well.......some day.
_________Now for something fun we did___________________
We went to a birthday party the other night for Logan Ashby. Court's friend Trevor's little boy. They were in town from Tuscon so we thought we'd join the fun.(we were invited, don't worry, we're not "party crashers") It was at Freestone park.
Here we are riding the train. Hayden showed NO emotion what so ever the whole ride. Maybe he had a head ache. Look close and you can see the bruise above his eyebrow. He tripped and fell into the entertainment center at Shelly's house. It was sad. The bruise looks so awful.
On the Carousel with Dad.
Who is having more fun here?
We had a great time at the party. Thanks for the invite! It was so good to see you guys.