My step daughter is 14.  I have been with her father for almost 5 years.  She is a nightmare.  She doesn't care about anyone but herself.  She lies and is almost failing most of her classes.  She yells at all the other kids all the time and has a terrible, ugly personality.  She's rude all the time and is disturbingly selfish.  She is tearing our family apart.    It got worse this year because of a boy.  She was obsessed with him and continued to get caught with PDA at school and straddling this boy in the empty performing art center at her school.  Keep in mind, we only know about the times she's been caught, we suspect its alot worse.  Even after this, she was given opportunity after opportunity to stop or change and she refused to do it.  After the last time she got caught kissing this boy by her principal, her biological mom and dad decided to transfer her to the school she was zoned to at her fathers (our house.)    After this, to be nice, I offered to pickup a friend from her old school to go dress shopping with us for an upcoming cruise during spring break. The girl's mom refused to let her daughter go because it turns out, she has spread vindictive rumors about her dad to her friends and their parents so that they believe he is a monster and have blocked him and wont let their kids near us.  She has admitted she did it because she was mad and that she only did it so she didn't have to tell them the truth about why she had to move schools.    She is sucking the life out of me.  I am consumed with anger for her right now.  I don't want her to go on this family vacation.  None of the other kids want her to go either (we have 5 total).  The only person who wants her to go is her dad and only because that is his daughter and he would feel guilty.   He even admits it would ruin everyone's time.  I can't tell him what to do out of respect for my husband.  It's his daughter and it's ultimately his decision but I know I will resent him if he let's her go.  What do I do?  What would you do???? ... View more