With the dogs?
any its not uncommon for this type of thing to happen similar to you tonya, my mum and dad divorced a couple of years ago and dad moved in with his girlfriend (quite far away) and its not that i didnt like her she didnt want dad to see me much and give me money etc because she wanted him to be a farther to her "3" kids (argggg that made me mad), i am a jelous person (i addmit it) its not that i dont want him to be happy its just i still need a dad!!
and i havnt seen or spoken to him in months!!!
and i dont think hes happy at all now with "3" young kids (i say this because hes now working away from "home"!!!
anyhow you have the chance to make a "new family" (many dont)
so give them a chance and your mum will always love you more than her new man!!! (or his kid)
Ky and Rio
sorry for the essay