I'm salty about a wedding gift and the insistence that we share it.
What is the wedding gift?
A ticket to a training, but I'm not attending if I have to share it.
The training ticket was a wedding gift to you and your spouse. You not wanting to share it with them is miserly on your part. You were meant to share this experience and to be grateful that you have a wonderful new spouse.
I have to have my life back once the wedding is over. I hate these parties.
I hope you don't really want to live your life on your own after getting married. Your spouse obviously wanted to spend the rest of their life with you, and that would mean sharing experiences such as this. This training was meant to be something that you would enjoy together, and your spouse being there will not degrade from your enjoyment, it will enhance it.