What do i do about my kids/myself being excluded from family trips by my husband/his kids?

we are a blended family. they dont like us going with them. they like to rub the fun in our faces as well. i just want some advice as to how to handle this. i feel rejected. im not interested in opiniions as to why this is happening i just want some advice on how to look the other way when they reject us like this. im not interested in rejecting back. at this point i have no interest in doing family trips with them any more either. i do want our family to work but i have been rejected one last time on new years eve weekend and im just bitter about making this family work. im angry with myself i think for letting it happen to us again. how do i get past this??? how do i change the feeling of bitterness that has been created? i find it hard to laugh with them anymore even.