HERmones?? (Great idea Indi, Thanks!) LOL

OK, I'm female... (looks down) Yep, I see all the working parts that make me one.
I often wonder if there's something wrong though. I seem to have missed out on the "female drama, irrational, screaming, crying, door slamming, throwing things, gene."
(Not to be confused with the same gene for males)
I get angry, things upset me, I don't yell and scream, I will be in your face, but I get over it! Life is too short, and most problems aren't worth getting worked up about. That's my take anyway.
I'm quiet, and I like to try solving things rationally. (OK, if you attack my kids or someone I love, then all bets are off) but, on the whole....

I grew up with brothers, 5 of them. I have one sister who's 9 years younger than I am, and so very different from me. She's a redhead, and has a full dose of the Italian drama in her blood.
I don't have much experience with teen female angst, and find myself dealing with 3 young females full of that angst.

First is my son's girlfriend, who's living with us. He works late nights, and he told her the other day that if he was too tired, he would spend the night with his buddy Justin. That's what he did. Knowing this didn't stop her from panicking that he wasn't home in the morning and she started calling his cell at 7am (for this son, that's a joke). Then when he wasn't answering the phone (because he was asleep). She called her mother and was crying, about how he hadn't come home and how he wasn't answering the phone. SHEESH! She knew where he was, she knew he was sleeping. She wanted him to wake up and come home. I told her that he didn't have enough gas to make a trip home and then turn around to go back to work. She says, as she's crying, "he has enough gas". I said, no, he doesn't. He's driving my car and it was on empty. He had just enough gas money for one round trip. If he comes home he won't have any gas to get back to work.

I THOUGHT that had got through to her because she didn't say anything afterwards.... until about 20 minutes later when she asks me to call his friend's phone, have him wake my son and tell him that I need him to come home because I need the car! UGHHHHHHH
She's doing stuff like this all the time, and I get so frustrated explaining real life to her and then not having her comprehend it.

I have 2 girls, one is 15, and after years of being a tomboy is now getting into makeup and a little more girlie stuff. She's got a hair trigger temper and is a door slammer. Among other things.

My youngest, 11, almost 12, is feeling put out and very sorry for herself. She's the youngest, no one loves her as much as they love everyone else. She's bent because her sister gets to buy and wear makeup and she doesn't. Her point of view, her life sucks big time, no one loves her, and I've ruined her life because she can't have a dog and or horse living in our backyard.
There's lots of yelling, name calling, door slamming, throwing things and a plethora of tears (I love that word), wailing and gnashing of teeth. I'm a very calm person, but this is beginning to get on even my nerves.
I'm open to suggestions, and wisdom of ANYONE who has a clue! lol BIG HUGS, Steph