As far as her 12 year old, it is a phase. Make sure you include her in activities, but you may both need to sit down with her and set the boundaries. Reassure her that you are not going anywhere, and although you are not her father, you would like to be her friend. See if you can get some input, but girls at this age can also be very manipulative. (I have three daughters, so I know my subject material VERY well.) There needs to be mutual respect, and firmness, but in a loving way. Make sense?
that's what I think it is too..I guess it still upsets me basically because..
I treat them very well while being firm..I support their mother when it comes to them and disagreements but I also show them empathy because I can remember being a teenager..I raised a teenager myself...I guess I am hurt when hteir is a disagreement between mother/daughters/sisters..and the 12 year blurts out that her bad behaviour is basically because I will be marrying her mom...and due to the fact that the same thing happened just after the engagement in Sept..and the same conversation happened and all things seemed to be taken care of...
I think it is..
her being a little manipulative..
her having a slight fear but I think she really overplays that..
she does not have a good relationship with her step mom..so I think she thinks all step relationships will be the same..