I can't vent this to my dh so i am going to do it here.
I don't think you sound jealous at all!
My MIL and FIL are divorced, and I know that the family acts differently depending on what side they are with. My MIL likes drama, so when we are gathered with just her there's a lot drama and tension. My FIL is very relaxed, so when we are with him things are more laid back and fun.
maybe i did sound jealous. I don't know. It is so hard to explain the situation and background w/ mil w/o writing a novel! lol
I don't think you are being selfish....I can really understand what you are feeling.
Oh, one more thing.
Thank you for your very honest reply.