There was a lot of mind reading in your last post. You are even speculating about what your ILs are thinking. Forget about it. Stop speculating about peoples motives and intentions. As I have said before, you are expending a lot of energy trying to control things that are beyond your control. Stop thinking about the wedding. Just stop. If you get an invitation tomorrow - great. But you need to move on. The wedding is in the future, your mind is in the past. Virtually none of you is in the present. You are analyzing all your relationships. It is what it is. Get over it. You need to focus on you. I fear you are using the wedding as a distraction to avoid the really important and difficult task of looking inside yourself and seeing who you are and who you want to be. The wedding will come and go, but you will still be there. Stop perseverating and get busy living.Fk the wedding.
Have you seen the following equation?
SW^3=N
It is a formula that all truly successful people, especially in sales, follow.