In Which My Babies Fight

This is how my day has gone so far this morning:  I wake up to the sound of babies crying and know they need attention.  I go into their bedroom and they both smile, happy to see me, cuz they both wanna be changed and fed and play with their Mommy.  Aila was crying the hardest, so I get her up first and start changing her, and she's immediately happy, hugging me, babbling.... meanwhile, Weston sees that I've got his sister and not him, and he starts complaining to let me know he does not appreciate it.  I'm trying to change Aila's diaper, but looking over my shoulder to speak lovingly to Weston, so he doesn't feel left out.  As soon as I can get Aila changed, I put her in the living room over the gate where she's safe till I can get Weston changed.  When I put her down, she thinks I've abandoned her and screams and throws herself down in the floor.  I'm telling her "It's ok!  I'm coming right back!"  As I go get Weston to change his diaper.  He's thrilled to be picked up and is hugging my neck and babbling to me, all while Aila is now wailing in the living room, cuz she's abandoned.
When HIS diaper's done, I put him down in the living room also so I can start making the sippy cups of warm formula.  Weston goes straight away to play with his favorite toy, pushing the same button over and over and over and over and over....  but Aila stands at the gate nearest the kitchen and wails at me about how hungry she is.  So I heat the first batch of formula, pour it in a sippy cup, and hand it over the gate to Aila.  She is, after all, wailing and Weston is busy with his toy.  And it's gonna take me a grand total of about 30 seconds to make the other sippy cup.  Now she's happy and drinking away at her warm milk, while I run off to make Weston's.  I get about 3 steps towards the kitchen when I hear banshee style screaming....I turn around and Weston has already crawled over to where Aila stands, holding her sippy cup up in the air in a vain attempt to keep it away from her brother, who's got her by a good 5 pounds and at least 2 inches of height.  He's DETERMINED to get the milk, and he's shaking he wants it soooo badly.  He's crying too, and reaching and pulling on her to get it, and she's SCREAMING cuz he's bullying it away from her.  I tell him "no" and to wait, and make sure Aila has the cup, and then RACE to finish making his.  He's screaming the "it's not fair!!!" Scream.  At 11 months old, they don't really understand "wait a minute" or "I can't fix them both at once."  They just think "Mommy fed the other one while she's making me starve!"  No matter how fast I go or who I take care of first, I always, ALWAYS feel guilty. 
Finally I get Weston's cup of milk in his hands, and he chugs it, till it's gone in like, 2 seconds, and then he immediately begins pulling Aila's out of her hands again.  She looks at me like "Do you SEE what he's doing?!"  I fix him a second cup of milk and then make them little bowls of cheerios and graham crackers to munch on.  I put the bowls in front of each of them, and their milk in front of each of them, saying who's they are as I set them down.  "This is Weston's food, and Weston's milk.  THIS is Aila's food, and Aila's milk."  I breathe a sigh that finally the fighting will end because their needs have been met.  Weston takes his own bowl and turns it upside down, and then jerks Aila's bowl away from in front of her and begins eating.  ARRRRGH!!!!!
Right NOW at this very instant, they are happily playing together.  He's pushing THAT SAME BUTTON on the toy and she's dancing to the music of it, and they're grinning at each other.  But any second now, ANY SECOND...he'll touch something she wants or she'll touch something he wants or he'll pull her hair or she'll poke him in the eye or they'll both decide they want me to hold them and then not want to share my lap or SOMETHING, and they'll be mad at each other and fighting again. 
I LOVE having twins, I really do, and I am thankful every day that I had them and that they're healthy and beautiful.  But this is the worst part about having twins... the sibling rivalry, the fighting.  And I'm gonna be caught in the middle of a constant battle between these two for the next 20 or so years of my life.  It's gonna be grrreeeeaat.