@Youthiswastedontheyoung
Blimey so much to unpack. I am glad you have seen sense and going to see how your DH feels and take it from there.
Your lack of being able to see situations from different standpoints is quite remarkable.
*People have bigger weddings than 17 people.
*People tend to invite close relatives to weddings - your DH being one of them.
*It would be really rude to invite a close relative and not their spouse.
*I have been invited to weddings as +1 because my DH has been invited. I didn't know anyone there, these admittedly have been big weddings.
*Family weddings / occasions, particularly if you don't live that close together, you should just go and join in, participate as these events are few and fleeting.
*Go, have a great time. Let your DC have a great time spending time with relatives.
*Stop having such a myopic approach to relatively simple social/ family dynamics.