Ohhh wow, what a rotten way to 'meet' your sep son!!!
Your right.. he was VERY most likely (999.99%) 'influenced' by his adult care giveers ( mom, grandpa etc) in how he felt about the situation.
ANY kid will have some issues ab out a parent moving on, but to flip out like that, and ESP with grandpas behavior, UM YEAH.
I too dealt with similar behaviours when my dh and I began dating. His ex was prepared to LOATHE me, and also informed her kids that it was 'ok to mouth off to Beck because she was a b****. ( this was repeated to dh and I by his then 4 year old dd)
for a long time I kept my yap shut, and dh coddled his kids, and I quietly steamed. THAT DID NOT WORK VERY WELL!!!!
Looking back, here is my advice, an part of it comes from what actualy WORKED better later on for us.
Suggest to your fiance that youd very much like to start family counseling so you can start learning how to be a good step mom. He can chose the therapist or you can. whichever you feel will work better. hopefuly it will be covered by insurance or maybe a minister will help if you attend church.
Second YES YES YES get his son on YOUR/dads TURF!!!! not just FUN GROUNDS either!! MAYBE the first time you all meet, go someplace fun, but it would be good to just have him with you and dad. It's OKAY that dad has a fiance. ITS NOT A BAD THING and its WRONG for his son to be made to feel that way and get in that groove. It IS OKAY for him to feel unsure and upset about it because its different yes, but not because mom and grandpa are pissed off about it.
If you phrase putting of the wedding until you are secure in your role as a step mom, then it wont seem so much as an ultimatum. but I do agree that you need to know exactly what your getting into and how the dynamics of your relatonship will work with your fiance, you and your soon to be step son BEFORE you take that big step.
once my step kids and their mom realized I WASNT GOING ANYWHERE, ( and it took me sitting down face to face with the kids, and getting toe to toe with his ex) and SAYING it very calmly.. " I AM NOT GOING ANYWHERE.. I LOVE CHRIS, AND I LOVE PAMEA AND CHASE!" everyone seemed to setttle down a little bit.
It's hardest to find where you stand with your fiance tho.. your not YET the wife, and he IS the father... so you feel like you dont yet have a role, or a 'say' in the mattters. but I finaly realized that by the time I DID have a 'say' in the matter, it woud be too late to put my foot down and say HEY I DONT LIKE HOW THINGS ARE GOING HERE!!!... I needed to say 'look if THIS is how things are going to be forever, I cant be a part of this family either I will have more respect and my hubby will demand his ex and his kids respect me and my position of his new wife or I just wont BE his wife."
My hubby was VERY quick in putting me first, and his kids first when THEY needed to be. His ex ceased to be in charge MOST of the time... although that is one thing we always have to work on as she is a dominating type of woman, and had a lot of control over him for many years. Ill never regret speaking up, although I was TERRIFIED of opening my mouth at the time!
gl!!