Is it normal for his mom and aunt to be like this?

So, me and my fiance will be talking on the phone.. and I'll hear his family in the background most times. He lives with his Mom, Aunt, and Grandma (I know, poor guy.. house of all girls... even the dog is a girl!)
Now, his Aunt has never liked me.. She says she does, but it's obvious that she doesn't. And she's weird because, she'll be nice to EVERYONE at church, but once she's out of their sight, she's an evil little bitch. She's so controlling! Me and him will be on the phone and I'll hear her call for him to take out the dog (cuz everyone in the house is too lazy to get off their asses and do it themselves) and he'll acknowledge her request by saying he'll be down in a minute.. 20 seconds later she ::SCREAMS:: up to him and tells him to do it now. And if he comes down still on the phone with me, I'll hear her say "just call her back and take out the dumb dog" It's like, wtf? He does both all the time?? Why does he have to call me back if he's just gonna be a minute?
His Aunt also talks to my Grandma all the time (whom I live with) and they gossip about EVERYTHING.. but that's a different story.. But usually, she'll take things and twist them around. She told him that I have a really bad temper and that I freak out a lot (courtesy of my lovely Grandma) and she usually follows with something like "Are you sure you want to marry her?" or "When are you going to end it?" But what she failed to mention is that I ONLY have a temper with my brother.. cuz he picks at me a lot and it gets on my nerves.. Basically, he provokes it.
But then also, I've known his Mother since I moved here 3 years ago and she's always been really sweet to me. The two of them pick at each other like brother and sister: "You're so dumb" "Shut up mom" "You shut up" And I've always tried to be as nice as possible to her.. Ever since me and him got engaged though, she's gotten meaner.. We're not "allowed" to do anything together like be out late or sleep over at his sister's house.. She won't let him get his license, she takes all the money he gets from work and puts it towards bills, so he's ALWAYS dead broke till his next paycheck... and even then.. Oh, and when he does eventually get his license, he's not allowed to drive her car.. He has to get his own... which is just awesome since he can't even afford to order off the Dollar Menu at McDonald's because she takes all of his money.
She also does the same thing his Aunt does.. I was talking on the phone with him today and I heard his Mom in the back saying "Tell her you have to go or something.. just get off the phone" I almost feel like she hates me now.

His Aunt also told EVERYONE that I forced him to propose to me... which is NOT true! So now everyone looks at me different..

Personally, I think his Aunt acts the way she does because she "blames" him for her Dad's death 5 years ago.. Because (he caught on fire) he was the only one there to help and he just stood there... He was 16! He was in shock of what was happening!

But is it normal for his mom to act that way? Is she trying to keep him from leaving home? Note: She lost her husband 19 years ago to cancer.. and my fiance looks JUST like him.. Do you think she just doesn't want him to go? His sister is moved out and married as well..

Please help..
I'm to the point that I'm gonna start screaming at them every time they treat him badly..