Rant about in laws (sorry long post)

So my hubby's mum and step dad they have 3 kids step only being dad to the youngest two and he treats them different to how he has treated my hubby and he still dose it now and it kills me they never support him in anything he trys to do. The step dad tell our girls and daddy can't do this other nasty things and it makes me want to go crazy but he tells me it fine I am use to it like what the fuck he is use to his mum and step dad putting him down and not supporting him. So when we 1st got together I fell pregnant 2 months of being together his mum said to my hubby are you sure the baby is yours and once I had my beautiful daughter I was still living with my mum because I had not found a house but she went to my mum and asked how many time did my mum have the baby and if I could coup with my baby she never asked me then when I asked her she said she never said that to my mum. This lady drivers my fucking crazy but I have to be nice for my girls and my hubby but I am waiting for the day she fucks up and she will be cut from our life's I know that sounds bad but I have had 9 yrs of her bitching about me to other people saying I won't let her set her grandkids but I have never stoped her she won't come round to our house. Thank you if you made it to the bottom. Sorry for any bad spelling or grammar. X

She dose not like me but is fine to borrow money from us even when we can't really afford it.